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My Thoughts An Experiments With Various Means Of Off Grid Cooking

My Thoughts An Experiments With Various Means Of Off Grid Cooking

I’m a firm believer in redundancy or the old adage,” one is none and two is one”. Over the last few months, I’ve put a lot of time and effort into experimenting with different methods of boiling water and cooking off grid. While I haven’t tested them all by any means, I’ve tested several and I have come to some interesting conclusions. Who knows, maybe my experiments will save you some time or perhaps cause you to reconsider an option for cooking that you have put in your preps, that might not work as good as you thought.

To begin, I’ll break the methods down into what each type of cooking uses for fuel.

  • solar
  • fire
  • compressed gas

Solar is the easiest to address. I’ve built and cooked with a solar oven. They typically take several hours and some monitoring and repositioning, but they work well and are easy to build, and not terribly expensive to buy. I’ve even got water to boil in the one I made.Here is a picture of mine, before I made reflectors for it.

solar oven bct

It worked fairly well like this, but when I made reflectors and found the optimal angle to attach them at, my internal temps went way past 300 degrees.

Fire is the next type of fuel I’d like to discuss. Of course, you can just light a fire and use that to cook over. It worked for our ancestors and still works today. However, the type of fire I’ve become confident in for its survival applications is fire that burns hot enough to both create woodgas, in a device designed to take advantage of that woodgas and burn it off before it exhausts from the device. Those are a rockets stoves and woodgas stoves.

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Simple Solar DIY: Building a Fresnel Solar Cooker

Simple Solar DIY: Building a Fresnel Solar Cooker.

Cooking is a rather natural use for solar power. We all know how the sun warms things that it strikes, leaving the inside of our cars hot and making us sweat on a sunny day. Many of us have also played with magnifying glasses as kids, using them to light dried leaves and scraps of paper on fire.

That power can be harnessed in a more structured way, making it extremely easy to cook with. Scientists have built solar furnaces which are hot enough to melt iron. While you don’t need anything quite that hot, a simple solar cooker could be a great piece of survival equipment to add to your collection.

There are several different designs of solar cookers you can make, but the most effective uses a Fresnel lens. Fresnel lenses are flat plastic magnifying glasses. If you’ve ever used one of those sheet magnifiers, you’ve used a Fresnel lens. They consist of a flat plastic sheet that has concentric rings molded into the back side. The rings act in the same manner as a regular magnifying glass, with the exception that each ring is a separate thin magnifier. [Graywolf – check out my post on using a fresnel lens as a backup emergency firestarter like I carry in my personal bug out bag.]

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Olduvai IV: Courage
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