Wednesday, September 25, 2019

Story Break: Types Of Fuel

Story Break

Types Of Fuel

What you learned in junior high science class still applies, at least in our universe. Matter comes in three forms: solid, liquid, and gas, and so does stove fuel. We’re gonna mostly forget about some of the fun things like high energy plasma, neutronium and whatever it is that black holes are made of.

If you’re familiar with these, then I can’t help you. In fact, I don’t want to know anything about you. Don’t look me up, I’m doing just fine on my own. I don’t need to be irradiated or probed in any way at all. Like I said, we’re going to deal with what’s in our normal universe, which is things right down here on old terra firma, U.S. of Earth, where we know up from down, right from left, and where we don’t make campfires from neutron pulsars or gamma rays or anything like that.

So, you don’t need me to tell you something totally obvious like whether to buy a stove that burns liquid fuel instead of compressed gas, or fuel tablets, let alone recommend the brand of fuel you should buy. It all depends on what you think is right, based on how you do your backpacking, and you’re an adult, so let’s stop there. Once you decide to go shopping, you’re on your own. They’re all out there on the shelves, or you can make your own. We’ve got some simple plans in this book, and a reference section. Right here, right now we’ll do a little something different for a minute.

I like to daydream, so here’s a couple of things for your head to play with.

How about a universal stove fuel? OK, it’s fuel, so you can burn it, granted. But what if you could brush your teeth with it too? I guess ethyl alcohol is a little like this, but not too much, and why stop with teeth? What if you could burn this for fuel and brush your teeth with it, and wash with it and shampoo, too? At least when you can find time and water and a warm sunny spot.

And how about if this stuff repelled bugs? And was a sunscreen? Right away you can see a little problem, like if you got your hair all lathered up and were covered with suds and then there was a spark? So it would have to be flammable when you wanted it to burn, but maybe not so much when you had your hair full of it. Anyway, you’d have to be careful. You get the point. We recognize the problem here and we’re working on it.

Then, like plan B, say, if you do your cooking in ziplock bags, you end up carrying a lot of used-up bags. It’s not like they add weight, because you’re eating the food as you go along, and lightening the load, but then again there you are, with a growing wad of garbage. You can keep stuffing used bags into other used bags and have them all stay relatively compact and scent-free, but, let me say it again, you keep getting a bigger and bigger wad of garbage.

So how about bags that burned? Not ordinary plastic bags, but something special. Plastic doesn’t really burn, not like stove fuel. Say that after you cooked your lunch and ate it out of the bag you could like rinse out the bag and then let it dry and it would get crumbly and turn into solid fuel flakes? Sweet.

If you’ve burned waste paper, you’ve had problems. This new stuff would have to be different. Burning waste paper is iffy — you never know what’s going to happen. You can get sparks floating away, or end up with a half charred mess. How about a way to convert your garbage into a dry compact little heap of flakes, which you could then measure out and burn in small tidy quantities? I’d like to see this one.

Next step. You realize that the world is filled with ratty dead stuff. All natural. There’s grass and old decayed bark, and pine needles, pine cones, dead leaves and twigs and so on. What I was thinking is what if there was some way to just grab a few handfuls of this and convert it into a generic fuel?

Shove some of it into a jar, and add some water or something, maybe with a pinch of powdered spores, and let the spores ferment it into a clean cooking gas.

Gas like methane would be a little tricky, but it would be cooler if you could ferment your own alcohol as you walked. Of course you’d have to distill it, so maybe methane wouldn’t be so bad. You could just grab a some dry grass every day or so and refill your fermenter and never have to carry fuel or buy it or hunt for it.

Instead you can just burn twigs and pine cones normally, but then you have hot coals and ashes laying around when you’re done, and you always need to worry about finding dry stuff that will burn. If you gassify it, there’s no problem.

Then maybe there is a way to create a fuel that could hide you. Imagine that burning it disguises you by hiding your smell, and the smell of your cooking. Wouldn’t that be great? Think about it. You could stop for lunch, and break out the stove, and as soon as you get it lit all the flies and mosquitoes would sort of blank out and lose track of you, and just crash into trees.

Somehow I attract a lot of flies and mosquitoes so this would be a good one for me. I’ve walked for miles with the same flock of horseflies circling around me for hours, and there I’d be, waving my trekking poles at them, wishing I had some kind of battery-powered zapper that when I pushed the big red button on it, the one with the white outline of the dead fly, it would kill all horseflies within 50 feet. God I’d love to do that and just watch them all drop out of the air and hit the ground with a dead fly bounce.

Well, then why couldn’t we have something, some ingredient in stove fuel that made us invisible to those nasties? Think about it, just sitting down to lunch or supper and sort of dropping off the radar.

Maybe eventually someone could improve it to the point that you could find a campsite, and sit down and cook, and this secret ingredient in your fuel would make your whole campsite invisible to anything with a nose. Then you wouldn’t have to stay awake all night wondering if you heard scratching and sniffing out there or not. Mice, wood rats, skunks, raccoons, bears, whatever. The cloak of unsniffability would linger for hours so you could eat in peace and go to bed and not have to worry. Damn that would be fine.

And suddenly I find myself thinking back to Ursula K. Le Guin’s “Left Hand of Darkness” and the micro thermo nuclear or whatever it was stove that they had in their tents, that you could carry in a pocket but it would set up and run forever and be totally safe, and you could just dial it up or down as needed for your chosen temperature range.

OK, we won’t see that one soon. If we had technology like that, you might want to forget it, to go out naked, with only a pointed stick, and leave behind all technology from the last 30,000 years, just so you could feel real.

Whatever.

Survey Of Stove Types By Fuel

Survey Of Stove Types By Fuel

The first duty of government is to see that people have food, fuel, and clothes. — John Ruskin

Most of us aren’t interested in chemical formulas. When we think of stoves by type of fuel, we think in terms that our minds can accept. These are solid, liquid and gas, so let us join hands and be simple-minded together. It’s lots easier, and if one of us begins to weaken from the sheer exhaustion then the rest can keep us from keeling over and hurting ourselves when we hit the ground.

Solid Fuel

Now that we have our feet on the ground (some of us may even be sitting at this point — I don’t know about you, but it’s easier on MY head), let’s go ahead and start with the solid stuff.

Solid fuels are going to be mostly familiar things, like dung, though maybe you don’t burn it that often, outside of that special office Christmas party that no one wants to admit really happened. You can readily identify dung because it’s brown and sounds like a bell. (Credit: Monty Python’s Flying Circus.) If dried well. Not so much otherwise, but you can normally recognize the wet stuff too. Isn’t it odd how we keep coming back to dung? Ashes to ashes, dust to dust, bung to dung. Oh, my.

You’ll be more familiar with our dear old friend wood, one substance that does grow on trees, luck be with us. And on furniture, pencils and window frames, but they tend to be scarce on the average hiking trail.

If you do happen on a bus load of hiking writers all scrunched down in a bunch and scribbling, feel free to steal some of their pencils and make a cooking fire. They may not catch on for a while. And if they do, you can just push one of them down and make him cry. Pick the weakest-looking one (this may be the hard part). The rest will mill around in confusion and might just write bad things about you later, after they send home for more pencils, but if they do get more pencils you will just have more fuel to burn. So there.

During the summer season you might try burning charcoal briquettes and see how that suits you. Charcoal burns hot and clean, but it’s messy, and slow to get lit. You can make your own charcoal by heating sticks in a tightly-sealed steel can (with a hole in the lid for the smoke to come out). Or you can try crushing briquettes and reshaping them into a more usable form. But you’d need some binder to hold the stuff together. Either option would be a tedious mess.

If you’re adventurous and have a bent toward scientific investigation or are just plain bent you may have set fire to lumps of paraffin, twists of paper, or grass or straw, or dead bugs, dried boogers or wads of cash (if you had extra), just to see how they burned.

Some companies even make solid chemical concoctions known as hexamine and trioxane, produced in factories and industriously stamped into tablets by huge impersonal machines that you and I will never get to know, love or operate with even a clumsy imprecision. Some hikers swear by these tablets, some swear at them, and many other people just swear for the sheer joy of it.

Solid fuels are nice because they’re solid. This has turned out to be one of life’s great coincidences. You can break solids into smaller solid pieces and carry them all in a bag, burning some now and saving the rest for later. And they don’t explode. Mostly. (Note to self: Remember bad, bad experiment with black powder. Bad, bad day.)

Liquid Fuels

Liquid fuels are trickier. We’re getting into areas that most of our brains aren’t adapted to deal with. We come from people who generally started off by tearing huge chunks of raw beast right off the bone with wide and sturdy teeth. After millions of years some of them grudgingly adopted fire on a trial basis, but only because they liked the feel of warm fat running down and dripping off their slick chins. All those ancient fires were burning wood (or, well, yes, maybe a little dung, too, for flavor).

Liquid fuels ARE trickier. They involve esoteric and arcane areas of study. Areas like chemistry. Chemistry that can catch on fire and run right between your fingers if you let it, and then run flaming down your arm to the elbow and so on. Liquid fuels are harder by at least an order of magnitude. And they puddle too. How uncommonly rude of these substances. To puddle like that.

For example, take the word “big”. That makes sense. Everyone has seen something “big”. No one needs an explanation. At one time we were all “small”, so we can relate to “big” without being specific. This is pretty good for a word with one syllable and three letters.

Platypus

Now take the phrase “harder by at least an order of magnitude”. If it helps, use the phrase “bigger by at least an order of magnitude”. Compare “big” to “bigger by at least an order of magnitude” and that shows you right there what kind of leap we have to make. Suddenly things have gotten so hard, so very hard.

An order of magnitude is the class of scale or magnitude of any amount, where each class contains values of a fixed ratio to the class preceding it. The ratio most commonly used is 10. Colloquially, the phrase “orders of magnitude” is usually used to describe a value that is many times larger than the value to which it is being compared. For example: The planet Jupiter has a surface area many orders of magnitude larger than that of the Moon.*

Damn, I’m snoring again. And now I have a grumpy headache too. That’s how big a leap we had to go through to get from burning piles of animal crap just to crummy old white gas.

With liquid fuels we’re dealing with stuff produced either by petroleum refining or by more natural processes. The petroleum fuels have a lot of fussy subcategories but they’re basically oily, smelly substances like diesel fuel, kerosene and lamp oil, or thin, runny, explosive substances like white gas. All of them are fairly nasty but they don’t smell good enough to eat, and they won’t rot.

The other liquid fuels come from what we can think of as natural sources. These are fuels like the alcohols and various vegetable oils. Even though your stove alcohol might come from a factory of some kind, you could really make it yourself, if you wanted to, so let’s consider it “natural”.

Forget about natural oils. Experiment if you like, but we’ve got some limits here, and olive oil in a backpacking stove is way over on the other side of the fence. Let’s not even consider rendering the neighbor’s cat or skimming the pot while making chicken soup. Go somewhere else, whyncha? Please, for once.

The alcohols are pretty good, though methanol (wood alcohol) is something to be slightly more careful with, and is one ingredient of denatured alcohol. Methanol is definitely toxic, and can be absorbed through the skin. If you drink it, it will hurt you, real bad. It will make you go blind, and then it will make you die, even if you don’t want to. And if it doesn’t kill you outright, you may wish that it had.

Denatured alcohol is made from ethanol (“drinking alcohol” or grain alcohol, sometimes called “party fluid”) plus methanol. This makes it “denatured”, meaning that it’s no good for human consumption. As if there was something natural about drinking things that make you stupid. “Denatured” means that it will hurt you if you drink it, and not in a good way at all, not hurt as in waking up tomorrow with a headache and a case of the pukes. Hurt as in really hurt, so you don’t even think about drinking it again. Please refer to the paragraph about methanol if you need more info.

As chemical substances go, though, ethanol is pretty safe unless you set it on fire, which is kind of the point here, unfortunately.

If you’re skittish about burning a mixture that contains methanol, you can always turn to Everclear, a drinkable 95% (190 proof) blend of ethanol and water, though it’s expensive, and at 190 proof, the drinkability rating is debatable. This stuff is strong enough to kill. As in kill you before you can set the glass down. No slow and unfortunate death following a permanent episode of blindness, no. Just a loud bang inside your head and then a loud thump as you hit the far shore.

If you like your thrills from a glass, maybe you should just stick to single malt scotch and forget about the backpacking. Even if Everclear doesn’t kill you it might just remove the hide from your gizzard on the way down, which is not a pleasant experience at all, not even once.

Incidentally, the idea of “proof” is rumored to have come from throwing a sample of whiskey onto a pile of gunpowder, followed shortly by a lit match. If the mixture burned then that was proof that the whiskey was strong enough. Otherwise there was too much water in it. You can tell here, can’t you, that we’re getting up closer to the edge. You don’t have to do this sort of thing with a pile of sticks that you intend to roast a rat over. With liquid fuels we’re right on the edge of death — either by poisoning or by explosion, like so much of modern life. Liquid fuels really ARE different.

If you decide to burn Everclear you’re either dumb or rich. (These two qualities have been known to simultaneously occur in the same person. After all, if you’re rich you can hire someone else to think for you and continue doing irresponsible and fun, dumb things.) If you decide to use Everclear as stove fuel and then change your mind you can make drinks with it, such as:

Purple Whodunit:

Ingredients:

  • 1 part ginger ale
  • 1 part grape juice
  • 1 part Everclear

Directions:

  • Combine ingredients.
  • Drink.

Disclaimer and warning stuff and all that: Must be of legal drinking age in your part of the universe. Drinking, let alone to excess, may make you clumsier and even less interesting than nature intended. Do not spill on clothes and then set yourself on fire. And so on.

Do not drink and drive. Do not drink and backpack. Do not drink and go exploring around the top of that really cool waterfall you saw this afternoon. Do not drink and do anything else but keep very still until it wears off, preferably under close supervision.

Limit: one per customer, if that. When in tough situations like this, stop and try to remember what your mother said. I wish I had listened to mine, but I have no idea what she said because I wasn’t listening. Don’t be like me. (Or Arthur Dent, in Hitchhiker’s Guide to the Galaxy, who was the first to say this.)

On to duller subjects.

Rubbing alcohol is also known as isopropanol. With a higher molecular weight than the other two alcohols, it contains more energy per unit volume, but it’s not a good choice for stove fuel because it burns with a whole lot of soot (because it has a higher molecular weight, duh). Can’t win. Dang. Avoid it. Not good for cooking, or they would have called it cooking alcohol.

Gaseous Fuels

For most people the most convenient stoves are those that burn compressed gas. This gas will be butane or isobutane, maybe with a little propane thrown in to confuse things. Just buy a stove, buy a canister, ram the two together and cook. These stoves are clean and tidy. Nothing to gather from under bushes or to pour through funnels or wipe up afterwards. No soot to speak of.

But on the expensive end, they are. And like stoves that burn liquid petroleum fuels these stoves are relatively complicated. If one springs a leak, you can’t just wedge it upright in one corner of your pack to keep it from spilling on your spare underwear. And if your canister is seven eighths empty, you probably aren’t going to take it on your next week-long trip. You’ll buy another canister, and eventually you’ll have a closet full of these mostly-empty canisters. Empty canisters are a little bit like hand grenades: pretty safe when handled with care, but they can bite if treated poorly.

Oddball Fuels

Way out in the lunatic fringe there are some other options. You can try a solar cooker if you have lots of time and a hot, nearby star putting out just the right wavelengths.

Some versions of the U.S. military “meal, ready to eat” (MRE) and some expensive, specialized backpacking foods come with chemical heaters. In the future maybe you can look for some backpacking-specific developments in this area, as well as in portable chemical refrigerants. This will no doubt call for another order-of-magnitude leap in evolution.

How hard to realize that every camp of men or beast has this glorious starry firmament for a roof! In such places standing alone on the mountain-top it is easy to realize that whatever special nests we make - leaves and moss like the marmots and birds, or tents or piled stone - we all dwell in a house of one room - the world with the firmament for its roof - and are sailing the celestial spaces without leaving any track. — John Muir (From his poem “Things to remember when your pants are on fire.”)

* From Wikipedia, a notoriously erratic source of facts, which makes it ideally suited as a source of information for this book.

Exercises

  1. Think about burning something. About how the flame, once created, leaps up to greet you, its master, with hot joy. Relish the power, the glory inherent in this process. Recall that you are one of the masters of creation. Perhaps THE master of creation. That, as such, you can do no wrong. You do, after all, make the rules, no? Hmmm.
  2. Go to the nearest fast food restaurant and place an order of magnitude. Be prepared to defend your position with subtle arguments and hand gestures.
  3. Find out where you can buy an MRE, then do it. Make sure that it’s within the expiration date. You’ll be pleasantly surprised. By the edibility and the number of calories. Make a note about this experience in your diary. If you’re a good writer, you can just read up on MREs and pretend you ate one. Your diary won’t know you’re lying when you write about the experience.
  4. Research John Muir, and see if he really did write a poem titled “Things to remember when your pants are on fire.”

Wednesday, September 18, 2019

Story Break: Kuchen

Story Break

Kuchen

Out there doing that stuff that you do, you go on. Go ahead. You’ll be sorry and when you come back all hungry, what are you going to do then? You think I’m going to wash all your clothes and make your bed for you? Am I dumb or what? You go away and whatever, traipse around, then you take care of yourself not me. I’m shut of it.

You get back all dirty and hungry, it’s not my fault. I’m not the one made you do that. I don’t see the point you got a life right here you can watch TV if you want some fun. That stuff’s for kids anyway. Kids play in the dirt. You’re grown up now so you should just act like it. When the bears eat you what are you gonna do? Then what? Eating with your fingers like an animal. Eating with a stick. My god, don’t tell anybody where you’re from, I don’t want anyone to know you’re one of us or just know us and come by sometime.

You stay in town and act like a normal person you can have good food. Here are my recipes for kuchen. This is good food. You should eat this. Stay home once. Grow up for crying out loud. This is dessert. From the old country. My mother made it and my grandmother made it, and all the women all the way back. You’ll like it too.

Kuchen dough (makes eight)

Soak 2 yeast packages in 1/2 cup lukewarm water. Set aside. Scald one cup milk with one half cup of shortening. Pour into large bowl, then add:

  • 1 cup cold water
  • 2 teaspoon salt
  • 1/2 cup sugar
  • 2 eggs, beaten
  • yeast

Then add 7 or more cups of flour. Knead well. Grease over top. Dough should be a little sticky. Cover & let rise until double in bulk.

Knead and let rise again. Split dough into 8 portions on floured board. Roll out to fit 8 inch or 9 inch round tins. Let these rise for at least 1/2 hour in pans. Now proceed with filling. This dough can be used for dinner rolls & caramel rolls. It’s a sweet dough.

Those cheap 9 inch aluminum pans you can buy in the grocery store are about the right size. If you use a larger size, you have to stretch dough a little then & use more sour cream filling.

Also just push dough up sides of pan a little bit & not over the outside edge like you would pie crust, otherwise you get too thick an outside crust & not enough dough in the center.

Cottage cheese filling for 2 kuchens

  • 2 cup Cream type cottage cheese
  • 3/4 cup Sugar & 2 tblsp of flour
  • 1 egg
  • 1/2 teaspoon nutmeg (or cinnamon)

Mix will & put over kuchen. Bake at 350 degrees - 30 min. Remove from oven & pan & sprinkle with a bit of sugar & nutmeg.

Apple - Peach (or any fruit you like)

Prick dough in pans with a fork then add a layer of sliced apple or any fruit and top with the following custard:

Custard for 4 kuchens

  • 2 cup Sour cream
  • 1 cup Sugar
  • 4 tablespoon flour
  • 2 egg
  • 1/2 teaspoon cinnamon

Mix well & pour over fruit. Bake 350 degrees for 30 min. Remove from oven & pans & sprinkle with sugar & a bit of cinnamon.

Prune Filling for 2 kuchens

  • 2 cups of cooked & mashed prunes
  • 3/4 cup sugar
  • 1/2 cup sour cream
  • 1 egg
  • 1/2 teaspoon cinnamon

Mix well & put on top of kuchens which should be pricked with a fork. Bake at 350 degrees for 30 min. Remove from oven & sprinkle with a bit of sugar & cinnamon. 1 package of prunes makes 2 kuchen. If you add more cream, it gets too runny. Also, recipe don’t say so, but add some flour to filling (at least 2 tablespoons).

Stove Evolution

Story Break

Stove Evolution

A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. — Douglas Adams

Where Backpacking Stoves Came From

It looks like we have to give credit to the Swedes for the idea of small, portable stoves, specifically B.A. Hjorth & Co. (Bahco). B.A. Hjorth, born in 1862 near Tarku, Finland, built the Primus company into a worldwide brand. Primus was the first maker of the kind of portable, liquid-fuel stove that a backpacker might recognize.

The man responsible for the design breakthrough of the Primus stove was F.W. Lindqvist. His design created a way to vaporize fuel before it burned instead of WHILE it burned, reducing smoke, smell, and increasing stove efficiency.

Some events contributing to the development of small, portable, high-output stoves were the age of Arctic and Antarctic exploration, and two world wars. Backpackers are still reaping the benefits.

Fridtjof Nansen, the Norwegian arctic explorer, was the developer of what was possibly the most efficient small stove ever: the “Nansen Cooker”. It is a combination of a stove and a multi-level pot designed to use as much of the fuel’s heat as possible, reaching an efficiency of over 90%.

Materials They’re Made From

Most early outdoor stoves were made of some combination of brass and steel, but more sophisticated materials, such as titanium are being used in the 21st century, in such products as the Snow Peak GigaPower, Primus OmniFuel Titanium, and Vargo Triad XE alcohol/solid fuel stoves.

Titanium is more corrosion-resistant than iron, steel, or aluminum and is as strong as steel while weighing somewhat less. Titanium is about as corrosion resistant as platinum. That says something. Its melting point is higher than that of steel or aluminum (about 400 degrees F above steel and 2000 degrees F above aluminum) and it’s less likely to warp. Although expensive, it is getting cheaper as it appears in more and more products.

Sizes, Shapes, Weights

Backpacking stoves come in a wide variety of sizes and shapes. Earlier stoves (like the Svea 123, going back to about 1880) tended to be either cylindrical or rectangular, or sometimes dumbbell-shaped with a fuel tank on the bottom and a burner and cooking surface on top. They were also large compared to current stoves. Nothing you could carry in your shirt pocket or under your tongue. Things have changed over the decades, and things have radically changed in the last few years. We’ll see soon.

Fuels Throughout History

Stove fuel is a tricky subject, like finding out exactly what’s in the can of pudding you ate yesterday. Names are mutable, and vary throughout the world. Reading the list of ingredients may leave you feeling like you know something when really you’ve just had smoke blown through your brain.

Here in the U.S. you might say “kerosene”, but in most of the world you’d just get a dumb look at best. Most everyone else says “paraffin” but means the same stuff. Sort of. Paraffin isn’t just A fuel, but a FAMILY of hydrocarbons, some of which are used as backpacking stove fuels, though not that often anymore.

As goes kerosene, so goes “white gas”. At one time this apparently was a clean form of motor fuel without the additives needed for internal combustion engines. Now it’s a less explosive but still related fuel called “naphtha”, “Coleman Fuel”, or “shellite”, “wasbenzine”, “renset benzin”, “essence ‘c’”, “reinbenzin”, “fleckenbenzine”, “becina blanca”, “solvente”, or “industri bensin”, depending on where you are and how much you’ve had to drink.

Getting dizzy yet?

The heavier fuels like kerosene and various flammable oils have more energy per unit of weight than lighter fuels but the lighter fuels are generally more convenient. When you get heavier and heavier fuels, the molecular weight goes up as you’d expect, but the energy content goes up even faster. That’s from all the carbon atoms hanging out together.

Imagine that each carbon atom has four hands. No, seriously. Imagine that carbon prefers to hang out with other carbon atoms if at all possible. Birds of a feather and all that.

Sometimes carbon atoms hold onto only two other carbons, the one to the left and the one to the right. When they do this they form a chain, sometimes a long chain, but nevertheless they are also left with two free hands (since each one has four hands to start with). Then small, light, zippy little hydrogen atoms flit in to fill up the empty slots and tag along for the ride. Hydrogens have only one hand each, and they’re glad to catch a ride anywhere they can. Carbon plus hydrogen equals hydrocarbon.

The terms “heavier” and “lighter” refer to molecular weight. A heavier molecule has more carbon atoms holding hands with each other in a longer chain. As atoms go in the world of combustible things, carbon is kind of heavy. More carbon atoms means a heavier molecule. By comparison, hydrogen, the lightest of elements, is so very light that it barely counts at all.

When combustion starts it’s the hydrogen atoms that get their little butts burned first. They’re relatively weakly attached, with only one hand each, and they go flying off into space howling in pain, looking for some relief. But they don’t get far. Big bad predatory oxygen atoms cruising around like sharks after a sardine lunch just snap them up.

Snap, snap. Munch, munch. So long hydrogen atoms, hello water molecules.

Eventually, with more and more heat pouring in, the carbon atoms themselves finally give up and let go, flailing their many hands about, trying to put themselves out. The left over hungry oxygen atoms snap them up as well, although it takes two oxygens to subdue one carbon.

That carbon, some fighter there.

The ultimate results are water (hydrogen plus oxygen) and carbon dioxide (carbon plus oxygen).

So “heavier” fuels like kerosene, diesel fuel, coal oil (and dare we say it, olive oil, linseed oil, peanut oil and anything else greasy and liquid, some of it quite tasty, in fact) are harder to light, but have more energy because they have more atoms in each molecule, and carbon atoms burn hotter. But because of this, they also don’t burn as cleanly, and tend to leave more soot, which is what free, unattached, slow moving, unburned carbon is.

Among commercial backpacking stoves these days the liquid fuel designs are on the decline, especially those that burn heavier fuels. But let’s not forget another family of liquids, the alcohols, a collection of flammable compounds that are central to lightweight backpacking stoves. Alcohol stoves have always been around, but in the last 10 years or so the liquid fuel arena has drifted away from white gas and toward alcohol.

Gaseous fuels are probably the most popular group today: propane, butane, isobutane, and blends that burn in canister stoves. Fairly scarce during the period from the Dark Ages (a time notably bereft of backing stoves, and backpackers too, come to think of it) up through the first half of the 20th century, they’re everywhere today.

Solid fuels. The original camping and stove fuels. Today these fall into two groups: traditional natural fuels like wood, and manufactured fuels like trioxane and hexamine. In the past these were either the only fuels available (wood, charcoal, dried animal poo) or nonexistent (manufactured fuels such as charcoal briquettes or pellets used in home heating). We’ll see some of these ideas again a little later.

Trends For The Future

Chemistry doesn’t change much. Only fashion does. What once was awkward and inconvenient and perhaps prohibitively expensive might be cheap, quick, and easy next month. Think about cell phones. Or bubble gum. That’s why in backpacking the canister stoves using compressed gas have taken over much of the market. Once the technology matured it became too easy and cheap for a lot of people to avoid.

But in the last few years the rise of light and ultralight backpacking has upset the balance again. Most people still carry a commercially-made and commercially-fueled stove that burns either white gas or compressed gas. Lightweight backpackers aren’t looking for the most common solution. Light weight and simplicity come first, and simple alcohol or solid fuel stoves are most popular with them.

Right now we have a small but continuously growing community of people using and making small, light and simple stoves. As more and more people get used to the idea of carrying a sub-one-ounce alcohol-burning stove, or a solid-fuel-tablet-burning stove, or a light and simple wood-burning stove, these stoves will continue to catch on, and will evolve into ever more convenient forms.

We are a clever species and we will be sure to make it happen.

Famous Stoves

The big three names of the past were Optimus, Primus and Svea, all produced by Swedish companies. These three evolved separately but in parallel, and got jumbled together through mergers in the 1960s and 1970s.

Virtually every country in the world with an industrial base seems to have made camp stoves, but they all followed one or two basic patterns: either the stove stood upright with a tank on the bottom and a burner on top or it came in a flat rectangular steel box with a burner in the middle and a fuel tank off to one side. These stoves all burned liquid fuels. Not until late in the game did technology advance to the point that compressed gas could be handled safely in small containers.

Nansen cooker

The “Nansen Cooker”, mentioned a little while back, was a piece of true genius.

The stove was a pretty standard tank-at-the-bottom, burner-on-top type, but it had an arrangement of pots and flues that made it special. It should serve as inspiration to all lightweight backpackers who want to make each piece of gear serve several functions.

A regular pot sat above the burner of this stove. Enveloping this was another pan with a hole in the middle, shaped like a doughnut (or a Bundt cake pan for those with kitchen knowledge). This pan held snow or ice, or just cold water. Hot combustion gases hit the bottom of the cook pot, and went up around its sides, between it and the inner side of the doughnut-shaped pan. Then those gases continued through a hole in the doughnut-pan’s lid and circulated across the bottom of a third pan sitting on top of all this. This third pan also held snow, ice or cold water. Finally the combustion gases exited down the outside of the doughnut-shaped pan and out into the atmosphere.

Combustion of fuel produced hot gases, and they heated the primary pan, and then wiggled and wormed their way past several other pans on their way out. What was simple waste heat for every other stove became a resource for the Nansen cooker, a free way to melt snow or heat water for dish washing or warm drinks.

From Stoves To Camp Stoves To Backpacking Stoves

Let’s define a backpacking stove as a lightweight, portable device for burning fuel in a controlled way with the purpose of applying heat to a pot. This isn’t so different from Benjamin Franklin’s creation of a metal stove used to heat houses. In his time, advances in metallurgy made the Franklin stove possible (there are rumors of this design earlier on, but they were unsuccessful due to poorly performing metal in the stove walls).

While the Franklin stove was meant to heat the air all around it, a backpacking stove is meant to heat just a small cooking pot. So there are some differences, but just as the Franklin stove was a great advance for its day, the backpacking stove likewise is also a clever little device. It also uses simple but advanced technology functioning in primitive conditions.

In earlier times backpacking didn’t exist. Backpacking is a sport. In times past, people went to war, migrated hither and thither across continents, or herded animals day and night, and not for sport, either. But all of them did have to eat. All of them were basically out there doing a job. Just working. They weren’t fussy and lacked even a faint dream of advanced technology. These people burned wood in open fires, or in makeshift cook stoves at best.

Today, rather than being limited to hunting for wood before eating, we have a range of self-contained stoves to choose from, and they are made from not just iron or rough alloys of steel but materials like brass, aluminum, stainless steel, and titanium. A stove is no longer a box for burning wood, or a grate over a wood fire, but a reactor vessel for sophisticated chemical recombinations.

Now you can have your choice of kerosene, white gas, compressed gas, solid fuel tablets, gelled or liquid alcohol, or wood, and if you insist, fuels like diesel, lamp oil, or salad oil. Some stoves have fans and batteries. Some are solar-powered. Some are sophisticated mechanical beasts with many tiny parts working in intricate harmony, and some are so simple that they give you no bragging rights whatsoever.

The result of modern technology is that if you want, you can carry something small enough to fit invisibly in your armpit that will still provide you with a hot meal, albeit sprinkled with a few armpit hairs (optional).

Exercises

  1. Learn how to pronounce the word “fleckenbenzine”. Use it in a sentence at a party, while trying to impress someone of the opposite sex. Well what the heck, just try to impress anyone of any sex, gender, political persuasion, religion, or shoe size. You get extra points if you impress them in a positive way (i.e. they don’t beat you up).
  2. Take a day off and travel around to various stores in your neighborhood to see which ones carry denatured alcohol. If you can’t find any, and you’re starting to feel really frustrated, go into a liquor store and look at all the pretty bottles. Anything distilled will be burnable (whiskey, brandy, and so on). Remember that if you’re in need, you can always find it at a liquor store, if you have enough money. Write a long letter to your mother about your alcohol dependency.
  3. To experience the thrill of the olden days before backpacking, before restaurants, when people worked all day, slept all night, and did their own cooking wherever they happened to be, try cooking lunch at work, on the floor, using a backpacking stove, preferably one that is older than you are. If you don’t yet have a backpacking stove, then try a wood fire. This is especially fun if you work in an office. Convey the thrill of your adventure to coworkers as they gather around to watch you in wonder. Offer to share some of your treats with them. It will be worth it.
  4. Extra credit: Organize either an arctic or an antarctic expedition, and carry it out. Come back alive and make a movie based on your experiences. Arrange for someone else to make the movie in case you don’t come back alive (you may decide you like it there, or you may just croak).

He Dont Do The Metric, Mamma

* He Dont Do The Metric, Mamma

Fact: One pencil thickness, determined through an extensive and tedious research project, is about 8 mm, plus or minus 1/16 inch. The survey was conducted in two parts.

Part one was a relentless tramp through many, many school supply stores and stationers, ruler in hand. Given the rise of “big box” retailers in recent decades and the declining fashionability of traditional wooden pencils (the kind with no moving parts or batteries), there are very few old school suppliers left, and the simple act of finding them was not easy at all. Not one bit, ladies and gentlemen. Not one tiny bit.

Collecting a decent sample size required visits to at least 17 states and possibly one territory. Most of the wares located (pencils in this case) were found neglected in small boxes on back shelves in out of the way corners under decades worth of dust, wrapped in cobwebs, and beneath layers of randomly-scattered insect parts. In dimly lit rooms only partly supplied with semi-breathable air. This was not fun at all, not even every now and then, for a few seconds at a time.

Part two, as a double check on the methodology, enlisted the talents of veteran grade school teachers. Several dozen of them. The burlier, ethically less conflicted, and lower-salaried ones willing to terrorize their diminutive charges for the sake of a few extra bucks. These proved most helpful. All in the name of science, of course. These teachers (and a few of their larger and scarier aides) were told simply to grab likely pencils at random and measure them. We do not know if any of these pencils were returned or simply retained, and resold in dark alleys, and we didn’t ask either.

At any rate we can state without a doubt that one pencil thickness is about as stated above, and that’s good enough for us.

Another fact: The metric system was invented in France, by a committee, in 1793. This committee was a group of men who wore silk stockings and elaborate powdered wigs. And spent their days endlessly multiplying and dividing. And not the fun kind of multiplying and dividing, but the kind that used quill pens, and ink, and made a mess of endless sheets of paper.

This committee of French scientific dandies defined the meter (whence the name for the whole metric system) to be one 10-millionth of the distance from the equator to the North Pole, and decreed that exactly every other measurement should be based on that decision. They decided on the one 10-millionth part because that gave them a final length that, if they had a stick that long, would be a handy size to whack things with. In other words, it was appropriately sized to the human body, like all other measurement systems throughout human history. This once again reaffirmed man (and the occasional uppity woman) as the measure of all things.

But as everyone says, the neat thing about the metric system is that you can convert one unit to another by either multiplying or dividing by 10. It’s incredibly tidy — divide this, multiply that, and so on. That’s the kind of system you get from a posse of effete sneezing snuff sniffers in silk stockings.

Anyway, this all seemed to be such a thunderingly good idea at the time that most people fell for it. Now we have meters. (The word meter just means measure, and how clever is that?) Not only meters but kilometers and centimeters and grams. And dynes, ergs, baryes, poises and pascals. Not to mention amperes, Kelvins, candelas and moles. If you have a lawn full of lumpy excavated spots that appear to regurgitate themselves overnight, every night, then you now know who to blame for moles.

And if you’re trying to measure anything remember that there is no exact way to get the true distance from the equator to the North Pole. No one even remembers who the North Pole was anymore, or what his exact street address actually was. And on top of that every measurement, no matter how fine you cut it, is an approximation. In the best case. Usually it’s a guess.

Think about it. You want to measure something, so what do you use? A measuring stick. And where do you get the measuring stick? You (or someone else) makes it in the standard size, whether that is a foot, a yard, a meter or whatever. And how to they know what size that is? They measure it with a measuring stick. Therefore all measurement is circular. You can’t measure something unless you already know how long it is, and you can’t know how long it is until you measure it.

This is true, and this is why the human body is so dang handy. No matter where you go, there you are. Hold your finger or your arm or foot up against something, and say “good enough for the gods”, and get it over with.

So you can get fancy and use the metric system or just stay with God’s Own System® also known as the Imperial System, based on the old familiar humble English inch (sometimes spelled inche, or ynchhe, and so on), which is the length of three barleycorns. This system was used by centuries of despots and their illiterate lackeys all the way back, and it still works the same way today. No assembly required.

If you want to see if something is an inch long and don’t know how long a barleycorn is, then go to your nearest bulk food store and buy three of them, the barleycorns. Then carry them with you wherever you go. You will never be at a loss. Or just say screw it, this is close enough, use your knuckle as a rough measure, and go with that, or just guess. See, you also get to make up the rules as you go along, and you can eat them if you get hungry (the barleycorns).

A major advantage of the Imperial system is that although it’s not more accurate, or easy, it is a lot of fun. It has units like the poppyseed (1/4 of a barleycorn, and also edible), the barleycorn (the length of a barleycorn), the digit and the finger (either of which is handy when waving to friends in traffic), the palm (three inches), the hand (four inches, dig it), the cubit (the length of your forearm, or 18 inches or 54 barleycorns), the yard (three feet or 36 inches), the mile (originally Roman, at 5000 feet, extended to 5280 feet in medieval times to make it an even number of furlongs). Furlongs! What ever happened to those furlongs, for crying out loud? We could use a few right now!

We also have the mouthful, the jigger, the cup, the pint, the quart, the pottle, the peck, the gallon, the rundlet, the barrel, the tierce, the hogshead, the firkin, the puncheon, the tertian, the pipe, and the butt.

With the butt we come to the end of our treatise, as is proper.

Bite me, French committee bureaucrat dudes in your fancy ruffled pants, bite me. On my Imperial butt. (The butt is 126 wine gallons, or 1.5 puncheons, or 3 tierces, or 7 rundlets, or either 108 or 103 ale gallons, depending on whose conversion factors you use. The colonies (us) got the wine gallon, smaller than the ale-beer-water gallon, which is the present Imperial gallon, which is why the English have bigger gallons than we do, the bastards.)

Wednesday, September 11, 2019

Story Break: Uncle Pudzer Explains Fire

Story Break

Uncle Pudzer Explains Fire

First there are three kinds of fires. Food fire, heat fire and wild fire. Two reasons to build a fire are cook over it and in case you screwed up and need some heat to save your sorry butt. You make a fire to cook or keep warm. You dont build a fire for fun, just so you can sit there and look at pretty sparks. Go to the city park for that. Watch the 4th of July fireworks. That dont belong out hiking.

The other kind of fire is wild. The one that gets away, maybe running off with your tent and the forest too, taking out a campground or two, everybodys pets and there RVs and air conditioners and TV sets and cars and stuff. Can be exciting.

Dont whine about people with RVs and generators and TV sets who take them along so they can watch Wheel of Fortune at the campground. Thats none of your business. They worked hard. They saved up there money and they get to spend it any way they see fit. They pay more in taxes than you do. That dont give you a right to put a coonskin cap on your head and go and burn them down, so listen up or go somewhere else if you dont like it. Your not going to be in the campground anyway.

OK, back to basics. The best place to build a fire is on sand, number one. Then bare ground, and third place on bare rock. Got no sand or gravel, use clean dirt. Everything else burns. Dont build a fire on top of stuff that burns or your an idiot. Repeat this until you got it memorized.

Lay down about two inches of dirt or sand. Thicker is better. As big across as you can. Bigger is better. Two to three feet across. If you dont have sand or dirt, then scrape everything away so your down to bare dirt. They call this mineral soil. Because it dont burn, its all minerals. Make a big enough circle. Got no other place, do it in the middle of the trail. If that dont work, keep walking a while. Go hungry, it gives you a good appetite.

Bare rock is your last choice. Fire will make it black. Somebody will know an idiot made a fire there, and they will know it for a long time, but at least you cant set rock on fire, even if your a complete idiot. A real good place is in the middle of a stream, where theres a sandbar or some gravel where you can sit. Lots of water too. Cooler, no bugs, usually, and a breeze. Could be worse.

When your done, use lots of water to soak the ashes and the ground. If your on sand or dirt, then stir it up too. Make it wet and goopy. When your all done, then put some more extra sand or dirt on top and smooth it over. Kick a little more over it. Make it look like you were not there. Make damn sure its out first. Piss on it.

Theres a bunch of ways to lay out a fire. Go buy a book or find some pictures or something if you want to.

I use two kinds of fires. One is called the “tepee” and the other is called “crisscross” or “log cabin”. You can lay out a fire in a little trench, but thats harder, and you got to dig stuff up. Most fires will be on top of the ground. A tepee fire has the sticks leaning on each other, on end, like a tepee. A tepee fire burns hot and fast and then it falls apart. Like my cousin Elroy. God I dont know what got into him, but he made a real hell of a mess of his life. Forget I mentioned him. Tepees can be good if you need to warm up and move on, but just moving on warms you up anyway so what is the point?

The crisscross fire burns down to coals pretty well. You can cook on it. You lay the sticks crosswise, at 90 degree angles, one layer on top of the other, all flat. You can use a couple of fat sticks at the bottom to make a hollow base, or dig a shallow trench.

Get a few rocks. Set them up first, so you are ready. Make sure your pot can sit on them nice and even, with the coals in the middle. Do this first. Then get some dry wood sticks.

Tinder, kindling and fuel is the key. Tinder burns if you just look at it hard. Kindling is in the middle, it burns fast but not that fast, and your fuel is what you cook over. Fuel sticks should be small. No bigger than your finger. If you got fat fingers thats OK. Finger thick is as big as your fingers. Remember that, and if you cant, look at your hands. Thats why they are attached, so you always have them with you.

Your sticks will be about a quarter inch thick, maybe 3/8 inch. Everybody is getting fancy these days, but I dont do the metric. I dont know what that would work out to.* You can take a caliper along if you want to play around, maybe an eyeshade and a pinstripe suit with spats, and a calculator too. I dont know that metric stuff. I am an old guy.

Use small sticks so your not there all day waiting for them to burn down enough so you can get close enough to set your pot out. You just need a fire, not a job. Remember you need to put it out at the end, so you dont want to start something burning that will take all day. You want it to burn down and turn into ashes, and then cover it and leave.

Break up the sticks about as long as your hand. Lay the two biggest ones down first, then crossways with another layer of smaller ones, on top, and so on. Mix some kindling and tinder in there, all the way up. Leave it all loose, so air can get in.

You want a ball of kindling and tinder at the bottom, on the inside, underneath everything else, on the bare ground. Thats what you will set your match to.

Light it on the bottom, on the upwind side, and put your pot on when its going good. On the rocks not on the fire. It will cook while the flames are there, and cook all the way down to coals, then they will burn out gradually. Try it a few times so you know how much wood to use. Put the fire out and you will be OK. If you do something dumb dont do it near me. I dont wanta hear about it.

Open Fire

Open Fire

Honesty may be the best policy but it’s important to remember that if you screw up, dishonesty can be a pretty good second best policy. – George “Flamethrower” Nilrac

Fire Types

The oldest type of fire is a kind we’ll call the “open fire”. It’s loose, free to wander, may get away at any moment, and if you use it, it’s up to you to watch it. Think of it as “free range” fire. This is all true.

Have you ever seen any photos from a 19th-century factory? Pulleys, belts, buzzing saws, racing pistons, and whooshing steam everywhere. Come to work with an unbuttoned shirtsleeve and before you can sneeze your arm gets pulled off and diced in the machinery. You’ll never see your fingers again. Back then it was up to you, not the boss, to watch what you were doing, and if you lost a couple of arms, legs, or eyes, you were encouraged to move on to another job elsewhere.

Open fires are like that. Talk about herding cats. This kind of fire is more like trying to herd houseflies. You don’t even have to do anything, just sit there, build it carefully, light it with love, tend it gently, warm your hands or try to make a cup of coffee and BINGO one stick pops, shoots sparks up, they start flying away and get into the treetops, and then you have a whole lot of excuses to think up while you sprint across the landscape trying to save your hide.

If you have to go this way, if you have to have an open fire, then start with some basic knowledge.

There are really two basic types of fires: those on top of the ground and those started in some kind of pit. There are several ways of arranging your firewood, but the most important difference is really whether your fire can just run away any time it wants, or whether it has to climb out of a hole first.

Digging holes in national parks before starting fires in them is only slightly less welcome than burning the parks down, but it can be a little safer, if more work. You can dig a simple trench or pit, or make something called the “Dakota pit fire” which involves a U-shaped tunnel in the ground, sucking air in at one to feed the fire at the other end, which serves as a chimney. This is especially good for fighter pilots who have been shot down and need something to do while eluding capture and waiting for rescue. A fire like this is in a deep hole and out of sight. And it’s pretty easy to put out and bury in a permanent sort of way.

Usually though you’ll dig a simple straight trench whose sides are just high enough to support a cooking pot, start a fire in the trench under the pot, and have one end of the trench pointed into the wind. You won’t worry about where to bury your parachute and which armed partisans might be hunting you with assault rifles. Not if you’re backpacking. On most days. In most parks. In this country.

Like the various vectors that cats and houseflies might adopt while fleeing your control, the direction of wind isn’t a fundamental constant of nature. As soon as you dig a trench to aim into it, it will change just so it can blow smoke back into your face. But the trench will offer a margin of safety, and all the dirt you dug up will help you to bury the fire when you’re done.

The issue of above or below ground aside, the basic types of open fire then become those that have the sticks either standing on their ends or lying down.

Tepee fire: Sticks standing up, and leaning together make a tepee-like structure. When you see an illustration of this kind of fire it always looks nice and neat with lots of straight sticks on even ground, leaning in together and coming to a tidy little point at the top. Real sticks are covered with bumps and warts. They are never straight, and don’t like to do what they’re told.

Sometimes they come close enough to make a recognizable structure, sometimes they don’t. If you build this kind of fire put some tinder and kindling down first, then stack up the fuel sticks around it in a cone with the tinder and kindling inside. Light the tinder when you’re done laying in the sticks, and keep feeding the fire from the upwind side as it burns. This kind of fire tends to fall over early on while it burns down. If you add fuel to the downwind side, the fire will slowly walk in that direction, before it starts running in that direction. We told you so.

Crisscross fire: With this one you lay the sticks down flat. This is handy for lazy people because the sticks want to do this on their own anyway. It’s called going with the flow. You can sound smart, cool, New-Age and lazy all at once by phrasing it this way.

This type of fire really benefits from a trench. With or without a trench, you lay down some of the bigger sticks first, going, say, left-to-right, parallel to your trench. Then lay another layer at 90 degrees, and so on, until you think you’ve got enough fuel. The trick is to keep it all loose enough, and mix in kindling and tinder as you go.

An alternate way of doing this is to start with just two larger sticks as a foundation, and leave a kind of hidden compartment down there to put the kindling and tinder in, underneath everything else. You always want to leave things loose though, to allow airflow.

Most people don’t know this, but fire needs air to burn. Ask someone about this and you’ll get a rational, reasonable answer. “Of course,” they’ll say, “everybody knows that.” But set that person out on the ground with a pile of sticks and a match, and they’ll get totally confused on you and weave all the sticks into the tightest most compact airtight wad you can imagine.

They’ll use a whole box of matches on it with about as much luck as trying to light a brick. They will blow and huff and wheeze and maybe get some smoke out one end, but that will be about it. Then they’ll go and try to siphon gas out of your car, figuring that all this fire really needs is a gallon or two of unleaded poured right over the top of it. Once they do that, by golly, it’s really going to work, for sure this time.

If this happens, then stand back. Way back. Maybe a quarter mile. After driving away in your car. And never accept an invitation from any of these people for a summer barbecue. They understand only the nuclear option.

Fires needs lots of air. Build fires so they can breathe and they’ll do pretty well on their own. They like breathing. Try it. Breathe in. Breathe out. Ahhh. So relaxing, so energizing. Just what your fire thinks.

Breathing makes a fire feel light and airy and personally fulfilled. Use the right sticks for fuel, put in the right tinder and kindling, build it up just right, and all you will need is one match. The fire will catch, you’ll cook lunch, the fire will burn down quietly, and you’ll be able to put it all out safely, and go on your way. There will be no need for air tankers, firefighting crews, or criminal trials crammed with prosecutors.

When you build an open fire like this (if you decide you really need one) you should think about three categories of fuel.

Fuel Types

Tinder: This is the stuff that explodes into flame if you only look at it cross eyed, or just show it a picture of a match. It’s what kick starts the fire and lights the other two kinds of fuel.

Tinder can be the shredded dry stuff under a layer of bark on a dead tree, or fine wood shavings (note: it’s getting harder and harder to find trees that still shave). You can use dead dry grass, wax paper, or navel lint (about the only good reason to have a really large, slovenly hiking companion).

Some outfits even sell blocks of magnesium metal that you can scrape with the blade of a knife. Make a pile of shavings, light it, and you’ve got a sort of thermonuclear tinder: a white-hot 2,500 degree F pile. Warning! For external use only. Do not eat or apply to skin or clothing. Do not try this while on medication.

Kindling: Part two of our fuel saga. Kindling is small twigs, split wood or heavy cardboard. Kindling is safe around small children once they’re past the stage of trying to eat everything or shove it into their nostrils. Relatively speaking, kindling is anything bigger than tinder and smaller than fuel wood. Kindling does not go around looking for a chance to explode into flame, but it does fill the step between the really, really flammable stuff and the semi-reluctant, sort-of flammable stuff that you want to cook over. Kindling is pretty easy to light but doesn’t burn long. It’s an intermediate, middle of the road sort of fuel.

Fuel: Real fuel. The big gun of the fire world. Fuel is usually dry standing wood and dead branches. For backpacking you really want pieces that are small enough to break up with your hands. If it’s too tough for that, then it’s too thick. Learn how to admit defeat and surrender early in the game. You will be happier and less dangerous. More efficient too. You want to cook a meal, not begin a long-term relationship. In a pinch, you can try dry, braided grasses or animal dung. Dry is the key word here, following right after “in a pinch”. Followed, even more distantly, by the idea of dung.

Someone, somewhere listed coal, oil shale, or oil sand lying around on the surface as possible campfire fuels. Don’t count on finding any of those. If you have to resort to dung, you’re probably backpacking on the wrong continent. Remember, this section about open fires is only for people who really want to do it the hard way, but still want to be potentially practical. Stoves are usually much, much better. Dung is way, way out in left field. If you want dung, go out to left field and please leave us alone, especially while we’re eating. Don’t offer us any of your food either.

Finding kindling, tinder AND fuel right where you need them, WHEN you need them is a little like expecting a big tax refund when you haven’t paid any taxes. Finding wild fuel is a lot less convenient than people tell you, which is one really good reason to use a backpacking stove and leave that tricky fire thing to someone else. While you’re out backpacking you normally have enough problems with hunger pangs and mosquitoes, let alone treasure hunts for firewood and the effort of trying to keep cooking fires under control while your stomach is growling, assuming that you find firewood. And you may not.

The Evolution Of Fire And Who Still Uses It

There’s a Harvard biological anthropologist named Richard Wrangham who believes that humanity started with an ape learning to cook. I don’t know about your family, but this is definitely true in mine. Unfortunately, my father was unable to complete his training and only got as far as predictably incinerating food beyond recognition. And swearing a lot.

Can’t forget that. One of his specialties. Swear, and if that doesn’t work, swear harder. And so on. Eventually either he or the universe got tired and gave up, and it wasn’t always predictable which one it would be, so there is some value in this technique for the diligent swearers out there.

When done frying a couple of eggs down to the point where they became indistinguishable from the stuff that plastic dinner plates are made of my father would run cold water into the frying pan to cool it, thereby ruining it. Do this to a hot frying pan and it puckers into a sort of shallow cup shape that never again sits flat on the stove. This is what I had to evolve from. It wasn’t easy.

In my mother’s family though, on holiday occasions, the men did most of the cooking. Mostly turkey, stuffing, gravy and potatoes. The women handled the rest with the customary grace borne of daily practice, since they cooked the other three hundred and sixty-odd days of the year. We all ate a lot on those occasions, and then the men retired from both the kitchen and table and sat around with loose belts and lied to each other.

Later on, just past the middle of the 20th century when television reached the northern plains, the men had the option of watching football on TV as well as lying to each other. In the kitchen the women did the dishes and gossiped about the men, or sometimes just swore at them. Without their day-to-day kitchen expertise and long-suffering tolerance we would all have died young, and miserably, and in great hunger. This is true. It was fun.

Primitive humans, some of whom may also have been among your relatives, probably first discovered fire by seeing it coming at them. The survivors were the ones who were good at running, and knew when to do it. The earliest cooks were the curious survivors who went back to poke among the ashes of wildfires and found treats like baked boar, grilled gazelle, munchable mouse, rack of raccoon, and melt-in-your-mouth mastodon.

That was it! The eureka moment of evolutionary history! They liked it! They really liked it! Fire and cooking have been following us around ever since, and exclamation points too (!).

There are rumors that Neanderthals may never have mastered fire, which may be why very few if any top chefs these days are descended from them. They didn’t entirely die out, as you know if you’ve ever had a job. Few chefs, but quite a few people in management are direct descendants of these sturdy but slow and dangerous folk.

Take a look at your boss, but don’t stare. They don’t like that. It’s like a challenge, and they may react instinctively in unpredictable and violent ways. Maybe you’ve already witnessed some of this at work.

When you can, look at your boss’s neck. See it? No? Try looking from the sides, and the back. Still don’t see it? Well guess what? There isn’t one. Try not to rile him. Or her. Remember, Neanderthals were a group of humans with large brains but still without the cleverness or patience to sit and rub two sticks together. That’s why they never got any merit badges in fire making. To rip and tear raw meat they evolved large, crushing teeth and may use them on you if they feel ridiculed, or even if only inspected too closely and with too much curiosity. Exercise caution here.

Peking Man (probably also Peking Wife, to tell the truth) was thought to have roasted meats, and possibly even chicken feet, which could have been the beginning of Chinese cuisine. At any rate, roasting spitted animals over open fires may have been virtually the only certified culinary method for many thousands of years, until the Aurignacian people of southern France suddenly began steaming food inside leafy wrappers for some unknown reason. No one has to tell you where this led. First to the Enlightenment, then the Revolution, and finally to vichyssoise and foie gras, but only after a sustained period of trial and error.

One bright day in the ancient past an anonymous person invented pottery and began getting fancy. He or she laid down the well-used pointed stick as a means of holding game over the flame, and created the concept of “throwing things into the pot”. This was a time long before the concept of patents and even of lawyers, and the idea was quickly stolen by absolutely everyone with any sense at all, and it spread like crazy. Pretty soon people were living in houses, working in cubicles, driving cars, emitting cell phone ring tones at every opportunity, and using Tupperware.

Good old fire was forgotten except for a few Boy Scouts and a handful of backpackers. This last group is today nearly the only bunch of humans still primitive enough to think that cooking over burning sticks is a pretty neat idea.

Exercises

  1. Write 500 times: “I promise never to start a forest fire.”
  2. Pretend you’re a fighter pilot who has been shot down behind enemy lines. Dress in camouflage if possible. Sneak into the woods with only a sheath knife, a book of matches, and some string. Live off the land for a week, and keep notes in a secret diary. When you return home, to prevent anyone from learning about your adventures, eat your diary.
  3. Make a pit fire. But not in your clothing. If you find that your pits spontaneously burst into flame you have a problem, but you already know this. Try doing your laundry more often. Bathe. Hang loose, but not with us. Please.
  4. Sing a song using the phrase “love me tinder”.
  5. Try descending from a long line of bachelors. If it works for you, and if you like it, then you’re just like me. If not, then you’re just like everyone else. Too bad for you. Being referred to as “normal” isn’t always a compliment, you know.
  6. Cook something unusual, perhaps a food that can only be eaten with a straw, on Thursdays in the autumn, under a benevolent and cloudless sky, in a strange and far-off land. You get extra credit for doing this over an open fire of your own making, especially if you do it naked.

Wednesday, September 4, 2019

Story Break: The Importance Of Air

Story Break

The Importance Of Air

The first thing is, fire needs air. Your backpacking stove is a little cup to hold fire. And as stated earlier (we repeat for emphasis) fire needs air.

Fire does not need air the way Madonna needs fans. Fire does not need air the way smelt need water. Also, fire does not need air the way Herbie, my favorite hamster of all time, needed his cheek pouches. No, fire does not stuff itself full of Cheerios the way that Herbie crammed them into his face, making it bulge out and become gross and scary.

Fire does not need air the way my grandfather needed my grandmother, or the way my grandmother needed my grandfather, even though they were married for sixty years, and died within weeks of one another, one of physical causes and the other, my grandfather, of grief.

Fire does not need air the way a female mosquito needs blood to make babies. This is a little closer though. Fire does not need air the way a real estate agent needs a buyer, the way a car salesman needs a mark, the way a religion needs converts, or a dung beetle needs poop.

It is all economics. To fire, air is like a cup of quarters placed in front of a slot machine, and when fire gets air, it burns holes in everything it gets its hands on. Fire has no sense of proportion. It does not save for rainy days, and does not even think about them. You might, but fire doesn’t. When fire has air it goes flat out, racing for the finish line with everything it’s got. Fire has no self-control. But when fire can’t get this air, it pulls into itself like a starving baby and just dies.

Remember this.

When you set up your stove, be sure to protect it from wind and rain. Put it in a safe spot, on level ground. Carefully prepare the wind screen and deploy it properly. Fuel the stove, light it, and place your pot on it with pride. Then shroud it with the wind screen.

But remember this – fire needs air.

So ensure that your wind screen lets in a generous amount of fresh air around its bottom, and allows hot air to leave from the top. The stove will accept the fuel and welcome the air, and make the necessary introductions between the two. Fuel and air know exactly what to do when they meet, and prefer quiet moments to mingle and combust without interruptions or audiences.

Practice modesty and keep the stove covered. Remember that it is unseemly to pry. Fuel, air, and fire (their lovechild), prefer privacy, away from cold winds and intruding rain. Fire has no master or mistress, no friends or relatives. Fire will not serve you, but if you make an appropriate home for it, it will come and visit and its heat will prepare your food and drink. After the fire flickers out you can eat, honoring it with grateful thoughts in the silent evening light.

What's Special About Backpacking Stoves?

What’s Special About Backpacking Stoves?

Backpacking: An extended form of hiking in which people carry double the amount of gear they need for half the distance they planned to go in twice the time it should take. – anonymous

Since this is a book on backpacking stoves you might wonder if there really is such a thing, and what makes it different from your average Jenn-Air JGS8860BDP Stainless Steel Gas Kitchen Range with pilotless ignition, oven lights, oven door window, warming drawer, and built in “Sabbath Mode”. Or a Colman Model 428-700 3-burner dual fuel stove with 24,500 BTUs total output.

Well, there are some differences, you betcha there.

Like weight. As you might imagine. Surprisingly, neither of the above products has a weight listed by the manufacturer, which tells you a lot up front. This is obviously a case of if-you-have-to-ask-it’s-not-for-you.

Porky backpacking stoves hit a peak of roughly two pounds, but really the upper practical limit is around one pound (454g). Remember, you have to carry it. All the way. Yes, that means you.

And if you are right now thinking “Golly, one pound is really light!” then consider this: the lightest backpacking stove I’ve ever heard of is made from the aluminum cup from the bottom of a tea candle (a.k.a. food warmer candle) and weighs 1/16 ounce, costs nothing if you can scrounge it.

If you can’t scrounge it and have to buy some, then you can get about 10 for a buck, including the candles. (Note: 1/16 ounce is 1.8 grams. One point eight grams worth of anything is...nothing at all. You could set one of these on the palm of your hand and blow it right off with your breath, even immediately after flossing and brushing, when your breath is at its least potent.)

Size: The Jenn-Air range measures 31 inches by 26 inches by 36 inches, or bigger than most backpacks, and bigger than some backpackers. The Coleman mentioned here measures 16 inches by 31 inches by 8 inches closed up. A tea candle cup measures something like 1.5 inches across by about 0.75 inches high (38x19mm), when standing on its tiptoes, and is very cute.

Are we getting the picture?

Backpacking stoves are a lot lighter and smaller than other stoves, even other stoves meant for use in the outdoors. This is because of one very important fact, recently referred to: you have to carry these things. Or, at best, get your sweety to carry them for you. Either way, someone will put in the work.

And when your sweety catches on, you still want to be able to say that you’ve got the lightest thing going, especially if he and/or she (times are changing) disagrees and tries to brain you with it. Words simply cannot express exactly how much I would prefer to be on the receiving end of a carefully-aimed and thrown 1/16 ounce aluminum cup relative to a 210 pound Jenn-Air JGS8860BDP. Or even the comparatively petite 20-pound Coleman.

Grunt and snort. That’s what you do on the trail, even with a five-pound pack, polite company be damned. You want the smallest and lightest stove that will do the job for you. Smallest because size equals weight. More stuff, and bigger stuff, means you need more space to put it all. Providing more space means a bigger, heavier pack. If your stove is small enough to carry in your shirt pocket, you’ve just saved yourself a lot of grief right there. Your grunts and snorts will become more refined and may occur at longer intervals than you are accustomed to. It will mean that you are evolving toward becoming a more perfect being, which is what this whole subject is about.

Generally, backpacking stoves are going to be between one-half inch and 10 inches high, between one inch and eight inches in diameter. They will weigh no more than a pound and use a single burner. (Height: 13 - 250mm. Diameter: 25 - 200mm. Weight: 0 - 454 g.)

They will more likely be made from relatively sexy materials like brass, aluminum or titanium than from iron or steel. They will be expertly constructed by highly-trained gnomes, and will carry a full load of love. Rather than being a thrown-together collection of crude, artlessly-hammered 19th-century materials they’ll be delicately fashioned from very thin, high-strength and exceedingly clever substances. They will be compactly built, and generally will fold up so you can carry them inside a cooking pot, and they might even have adjustments for use with different-sized pots or on rough ground.

The more intricate stoves, especially the liquid-fuel models, will be field-strippable and have compact cleaning and repair kits that can be used on the trail. Some of the simplest, smallest, cheapest and lightest stoves, though, are those you can make yourself, and need no maintenance whatsoever.

Backpacking stoves are generally easy to use, maybe a little more complicated than a gas range, but less so than a camp stove. It’s becoming more common for backpacking stoves to have built-in spark lighters, so you don’t even need matches anymore. Some stoves don’t have built-in fuel tanks, but simply connect to an external fuel bottle. Voila! No need to fill them! Some have adjustable feet to deal with rough surfaces. Most don’t, though, have built-in wind screens, but these are easy to make.

Fuel is probably the biggest difference between backpacking stoves and other stoves. The names for fuels vary across the world, but let’s stick with our monolingual American tradition and just use our versions of these names. Among liquid fuels there is kerosene, white gas (a.k.a. Coleman Fuel), and alcohol, either grain alcohol (ethanol) or wood alcohol (methanol).

Compressed gas fuels are butane, isobutane, or some blend such as isobutane/propane or butane/propane. The stuff that runs through your gas range (usually called “the stove”) at home is methane with some smelly substances known as mercaptans added so you can tell if you have a gas leak without lighting a match first. Commercial heaters and big bunkhouse stoves or farmhouse ranges might use propane, which needs to be confined in heavy steel tanks.

There are also solid fuel tablets, paraffin candles, pine cones, twigs, charcoal, and fuel pellets which we’ll get to a little later. It’s unlikely, but you may see someone using these fuels while backpacking but extremely few five-star restaurants are known to use them.

Exercises

  1. If you’ve decided to take up ultralight backpacking, then learn to grunt and snort convincingly, as though you still hurt a lot, even though you now feel really great and have regained your sense of humor.
  2. If you’ve decided to take up ultralight backpacking, then learn to project a smug expression of moral superiority. If you can’t (or won’t) do this, then we’ll hunt you down like a dog, haul you off, and leave you tied naked to a tree in the deepy deep deepest dark woods. All alone. Until you agree to become just like us.
  3. Just kidding.
  4. Extra credit: Burn a fart this week. Write about it in your diary, or better yet, someone else’s diary. Extra special extra credit for writing it up in someone else’s blog. Yeehaa!