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I’ve been spending a bit of time experimenting with some different off-grid cooking methods of late, and recently have done a little bit with the infamous Dakota fire hole. Long touted as the ideal means of cooking your food when you have to be careful with the light and sound signature (such as with modern day American backpackers that were stuck in Peru), it seems that everybody is a fan of this type of campfire.
So, I’ve been doing a bit of testing of late to see how it fares. You can read about my last foray with Dakota fire holes here. In that article, I noted that it took 25 minutes to bring 0.85L of water to a boil, generated a small column of smoke about the size of a large apple, and required very little fuel.
I wanted to know if there was an easier way to build it, though.
If you don’t have the time, energy, or desire to sit there in the evening and try to dig out a small tunnel in the ground with a pointy stick, is there an alternative method?
That’s what I looked at today.
The method I used this time was using a large rock to form the top of my tunnel. This made it so that instead of having to worry about delicately scraping out a little tunnel in the dirt, I could simply scrape out a depression, throw the rock on top, and voila – a tunnel.
Here’s how it went.
Digging the trench
The ground was frozen solid when I did this, so I had to use an actual shovel and a pry bar to scrape everything out. That’s definitely something to remember if you’re thinking about building one of these types of fires in the dead of winter.
If it had been summertime, this would have been a piece of cake and I could have easily done it with a flat rock, small shovel, or the like in a matter of minutes. Shoot, if the soil was loose enough, you could even scrape it out with the heel of your hiking boot.
So, digging the trench really isn’t going to be a problem you’re going to face.
The trench I dug here has a rough peanut shape, is a foot deep, is two feet long, and is about a foot wide at the bulbs of the peanut.
No, I don’t know why I chose a peanut shape. I just did. I guess I was just being a goober.
I live in a really rocky area, so finding a large flat rock to place over the scrape in the ground wasn’t hard at all. Tony Nestor points out that you want to make sure that the rock you use for this method isn’t going to explode once it becomes heated by the fire. Avoiding rocks from the bottom of a creek or stream where they’ve been inundated with water is a big part of this.
I found a 2’ long and 9” wide rock and threw it on top.
In theory, this should allow the fire to draw in oxygen through the “entrance” opening, much like a rocket stove sucks in oxygen.
Lighting the fire
This was a piece of cake. While everything was frozen solid, it was also bone dry. The fire was started in a matter of seconds.
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Time to boil water
I used the same 0.85L Kelly Kettle pot full of cold water to simulate what you may have at hand in a survival situation, measuring the time it took from when I placed the pot down to when it started boiling.
If you read my last Dakota fire hole article, you saw that I used the top of a hobo stove as a form of burner for me to rest my water pot on. I squished it down in the small hole atop the fire, and it stayed in place pretty well.
I wanted to simulate how things might be if you found yourself in a Juliane Koepcke-type situation though where you had minimal equipment. What would things look like then?
So this time I scraped out a small shelf beside the fire to rest the pot on. While I knew that this wouldn’t expose as much surface area of the pot to the fire, I wanted to see if this was a suitable alternative.
Forty minutes came and went, and this pot had only then started to collect bubbles on the side walls of the pot. Not having all day to sit around a campfire, I scrapped the experiment by that point. This leads me to believe that my “shelf” idea is absolutely terrible. This is one way not to build a lightbulb.
I was really surprised at how much smoke was generated this time. Admittedly, this was a larger Dakota fire hole than my hand dug tunnel one, but the amount of smoke generated was easily 5x the hand-dug tunnel.
Somebody could have most certainly seen this if they were close enough. I used the same wood as I used last time, so I don’t see where that would have made a difference. The only thing that I can think about is that maybe my stone version of the hole was more of a trench than an actual tunnel. Perhaps it didn’t burn as hot so it generated more smoke? Let me know what you think in the comments below. This is the first time I’ve ever done this type, so I’m definitely open to suggestions.
The only thing I can then think is that if you’re going to build a Dakota fire hole and you truly are worried about the amount of smoke that’s going to be produced, you need to A) build the scrape as small as possible, and B) potentially build up a dirt chimney or something on the fire side so that the air gets better cycled like a rocket stove, the fire burns hotter, and less smoke is produced.
I have some missing data here since I never was able to bring the pot to boiling, but it took me four large handfuls of sticks to last forty minutes and not bring anything to a boil.
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Outside of the above already given, I have a few thoughts on Dakota fire holes that I think are (maybe) worthwhile. First and foremost, you need a pot that can be hung from something. If you’ll remember, this was one of the main lessons from my last experiment with these. My shelf method left me with a pot full of ash (lye?) that still wasn’t boiling. If you were needing to boil water to drink, that would make for an unpleasant amount of time spent making less than a liter of water.
I’m considering drilling three small holes in my little pot so that I can attach a chain to it and hang it. This is, what I think, the best way to boil water with a Dakota fire hole. I did find a small little pot that can be hung over a fire that costs all of $20. I think I’m going to get one.
If you’re roasting a squirrel or baking some fish, I don’t think you’d have much problem at all here. It’s when you’re trying to boil something that you end up with issues unless you have the necessary tools to improvise.
But what are your thoughts? Do you use a Dakota fire hole? have you ever tried this technique? If you have any advice for me here on making this work better, let me know in the comment section below.
Aden Tate is a regular contributor to TheOrganicPrepper.com and TheFrugalite.com. Aden runs a micro-farm where he raises dairy goats, a pig, honeybees, meat chickens, laying chickens, tomatoes, mushrooms, and greens. Aden has four published books, What School Should Have Taught You, The Faithful Prepper, An Arm and a Leg, The Prepper’s Guide to Post-Disaster Communications, and Zombie Choices. You can find his podcast The Last American on Preppers’ Broadcasting Network.