10-Minute Pop-Can Penny Stove

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Introduction: 10-Minute Pop-Can Penny Stove

Half of my last instructable draft just deleted itself while working on it. Instead of crying over spilled megabytes, I've decided to instructify another quick project from last week.

Full disclosure: I don't actually know if it took me 10 minutes or 5 or 15 to make the stove. I just know it's quick. Far quicker than it actually takes to write this!

So, to begin:

A pop-can penny stove is a small, ultralight alcohol-fueled stove for camping. It's useful as a back-up heat source for cooking, and despite its simplicity its one of the most efficient alcohol-burning set-ups available. There are more complicated versions of this stove, that likely do work better. But few are as simple or easy to make!

In a role as a back-up or emergency stove, it works quite well in conjunction with 190-proof Everclear. While there are better and far cheaper fuels available, the advantages of Everclear are that it has multiple other uses:

  • Disinfectant/sterilizer for medical treatment
  • Painkiller
  • Intoxicant
  • Solvent for tinctures
  • Cleaning solution

In addition, it is less likely to contain toxins that can be absorbed through the skin while handling, and less likely to put out dangerous levels of carbon monoxide, making it relatively safer to use in confined spaces.

With this in mind, having this in an emergency medical bag, bug-out bag, or winter vehicle kit along with a small water bottle filled with everclear will cost you only a couple ounces and very little space. It could potentially save your life, or at least save your night if your other cooking solutions aren't working out.

Step 1: Step 1: Gather Materials

Drink 2 cans of pop or beer, or find a volunteer to do it for you.

Grab a pocket knife & scissors, or a multi-tool if you have one. I used a keychain-sized leatherman tool to build the entire thing.

Grab a penny from a junk drawer or from under a couch cushion.

(Optional) find some sandpaper to smooth some of the edges. It makes it slightly safer to operate.

That's it! There's nothing here that can't be found inside your home.

Step 2: Step 2: Cut the Cans

Cut off the tops of both cans (the end with the opening to drink from). It's easiest to cut it with some scissors near the top, then peel it down to size in a spiral pattern. This ensures that the cut is nearly always smooth.

Peel or trim the cans down to a height of 2 inches or so.

Step 3: Step 3: Fit the Cans Together

Designate one tin cup as the inside piece, and the other as the outside piece. Lightly crimp the top edges of the inside can.

Face the two "cups" together, and gently press and wiggle one inside the other. Be careful to avoid cutting yourself, since sheet metal can be incredibly sharp! Continue working them together until there is a tight pressure fit, and no further movement is possible.

(Optional) On the spot where a bare edge connects with the top, take some sandpaper and soften the edges. This will make it slightly safer to use and give it a better fit.

Step 4: Step 4: Puncture Holes for Burning

There are many different patterns and models used for this type of stove, but the most common seem to be 6 or 8 holes. More will work, but are usually not necessary.

Note: the stove seems to work best if the out metal edge (the part sanded in the last step) is facing up when you puncture the burner holes. While it will work in either direction, it seems like it might leak fuel in certain circumstances if this advice isn't followed.

Using a knife tip, awl, nail, or even a sewing needle, puncture some evenly-spaced holes around the outer perimeter directly below the rim. Try to make the holes a uniform size, since any larger holes will jet more flames than the rest.

Puncture one hole in the very middle of the can, and widen it to be roughly large enough to push a pencil into. This hole will be where you pour the alcohol into, but will be covered by a penny during operation.

Step 5: Step 5: Fuel It and Light It!

Start pouring alcohol in until it's fairly full. Filling to the brim isn't necessary, but since there's no easy or safe way to refuel while it's running, you will need enough fuel to cook whatever you plan on cooking. Since all stoves burn a little differently, the best way to know fuel needs is to run tests.

Some stoves can simply have a match touched into the fuel hole, and they will begin working. If this is the case, congrats! You have a stove that's very easy to light.

If not, take a small bowl or lid (ceramic or metal only!) and fill with fuel, then place your stove directly on top. Place the penny in the middle, and light it up! Over the next 20 to 60 seconds, the heat will vaporize the alcohol, and jets will shoot the puncture holes. The flames from the starter fire will ignite those jets, and you will have a working stove.

If the jets are low enough, you can place a cooking container directly on top. If not, you will need a small pot stand of some type. Be careful not to tip over the stove while it's running, or flaming fuel will leak everywhere!

Unlike some other fuels, alcohol fires can be put out nearly instantly by a little water. Keep a small bottle near your side, and when you're done, douse the flames and let it cool.

Congratulations! In only a few minutes, using common tools and garbage from around the house, you've created one of the best ultralight backpacking stoves on the market. I'll drink to that!

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    32 Discussions

    0
    GaryDKlein
    GaryDKlein

    5 years ago on Introduction

    This stove is excellent for just camping out but for backpacking, I have a much better solution. I make a candle type burner with a used tuna can, corrugated cardboard, and meat drippings. Simply cut strips of cardboard just a bit narrower than the height of the tuna can and roll them into a coil that will just fit down into the can. When cutting the strips, cut across the corrugation instead of with it.

    When you get the coil of cardboard in the tuna can, set it in a throw-away pie tin and pour in hot hamburger grease until the cardboard is saturated and the corrugations filled just shy of the top edges of the cardboard.

    To use, set the can on something not flammable and place three rocks evenly spaced around it to hold your skillet or pan above the burner. Light the cardboard wick in 3 or 4 places and let the flame spread over most of the surface before starting to cook.

    The advantage for backpacking is much more cooking for each ounce of weight you are having to carry and there is no danger of spilling your fuel.

    0
    Arbormakes
    Arbormakes

    Reply 6 months ago

    Yes, that candle type thingy is a great stove for regular use, it is also called a buddy burner. If you fill it to the brim with wax, it will burn for hours! ( I have tested it)

    0
    JRPeyesatsne
    JRPeyesatsne

    Reply 5 years ago on Introduction

    I saw this option on wikipedia!

    https://en.wikipedia.org/wiki/Buddy_Burner#/media/...
    I have yet to try this, but I think it is an excellent idea! It has the downside of being more of a one-time use item, but I suppose it could be put out by being flipped over after it was half-burned. It also makes an excellent starter for a larger campfire, if you're so inclined.

    There are 2 other stoves that I have yet to try, the "Super Cat Alcohol Stove", and the homemade version of the Solo Stove. Alcohol has the advantages described in the 'ible above, but the downside of a less-dense energy source. Twigs gathered on site for an efficient wood burner (like the Solo Stove) is essentially infinite, but can require more time to find dry wood. A "Buddy Burner" can kind of split the difference between the two.

    0
    fulltimerart
    fulltimerart

    5 years ago on Step 5

    Great emergency item to have. Just be SURE to label the alcohol bottle with its contents so someone does not take a drink of it.art

    0
    Arbormakes
    Arbormakes

    Reply 6 months ago

    If you are concerned about poisoning, you should replace the denatured alcohol with any drink that has more than 80% alcohol.
    This will come for a higher price, and is illegal in some places, so just be careful where you take it.

    0
    rpotts2
    rpotts2

    Reply 5 years ago

    If he sticks with Everclear, he just needs to keep it away from kids.

    0
    HaveFunWithIt
    HaveFunWithIt

    Reply 5 years ago

    I'm more worried about the automotive " Heat" brand people use. A sip of that can kill you. If using it never repackage it. This is why i switched to Everclear.

    0
    quas1mod
    quas1mod

    Reply 5 years ago on Introduction

    I think he means that you should label the Everclear as rubbing alcohol, so there will be some left if you get desperate enough to drink it...

    0
    therickster
    therickster

    5 years ago on Step 5

    Are we talking just common drugstore rubbing alcohol?

    0
    gestun
    gestun

    Reply 5 years ago on Step 5

    That is not what he is referring to, but 91% isopropyl alcohol will work. Drugstores usually carry 91% and 70%. Get 91%.

    0
    GaryDKlein
    GaryDKlein

    Reply 5 years ago on Introduction

    No, drugstore alcohol or common rubbing alcohol is diluted too much. What you want is 190 proof grain alcohol from your liquor store. Everclear is one of the brand names but there are others. Buy the cheapest they have since all you are getting is 95% raw alcohol. There is no "better" or "best". You can burn cheaper denatured alcohol from your paint store but it is poisonous and you run the risk of mixing it up with your "medicinal" alcohol.

    0
    RadicalDruid
    RadicalDruid

    5 years ago on Step 5

    I tried it, but I guess Vodka with 80% isn't enough?

    0
    sypher
    sypher

    Reply 5 years ago

    80 proof is not 80%, 80 proof is 40%. Just making sure you are not making that mistake, proof alcohol vs alcohol percentage is a bit awkward. An alcohol mix of 75% and above should have no problem burning. The ideal "penny stove" fuel is denatured alcohol... Liquid Heat, for gasoline engines, is pretty good way to find it.

    Very cool! What about using a stubby soda (unopen) and popping the holes in the bottom?

    0
    qajaqer99.
    qajaqer99.

    5 years ago on Introduction

    Hey,

    Great idea my 20 yo Trangia alcohol burner gave it up on my last camping trip to watch the Perseid meteors, so this will be a replacement.

    0
    JRPeyesatsne
    JRPeyesatsne

    Reply 5 years ago on Introduction

    Good to hear! I've heard it works well if you stuff fiberglass insulation in it too. There are many versions out there, and they're mostly really easy to make!

    0
    PeterR17
    PeterR17

    Reply 5 years ago on Introduction

    Fibreglass absorbs and holds the fuel by capillary action. That way it won't spill out if you tip or invert the burner. Also means you can put plenty fuel in it and just put it out and re-light it when next needed - but keep it in a sealed plastic bag or it will evaporate and dry out.

    I have a commercial alcohol burner working like the one described and simply use a ball of toilet paper inside it for the same purpose, but I might now replace it with fibreglass wool.

    I had about 5 minutes spare time before packing the kids into the car for Mass today. I've never made a penny stove but my curiosity got the best of me and I had to try! I did it, and only one "minor" nick on a finger (merely a flesh wound!). Tried it out when we got home...groovy times had by all. Thanks for the instructable!

    0
    M. A.G
    M. A.G

    5 years ago on Introduction

    "(Optional) On the spot where a bare edge connects with the top, take some sandpaper and soften the edges. This will make it slightly safer to use and give it a better fit."

    I'm sorry but the above statement makes absolutely no sense. For the life of me...