Thermal cookers are an amazing resource to have on hand! They’re great for every day cooking, or for times when you have to cook without electricity and have a limited amount of fuel. Thermal cookers can cook your food for you, or keep foods warm or cold for several hours. The best thing about thermal cookers is that they’re compact, portable and so versatile!
A thermal cooker is basically like a giant thermos. To cook food in a thermal cooker, remove the inner pot. Place your food inside the inner pot and bring it to a boil on a stove. If you have electricity/gas, you can bring it to boil on your regular stove, if not, use a butane stove, alcohol stove, backpacking stove, kerosene stove, propane stove, jet boil, rocket stove or volcano cooker to boil your food. When the contents of the pot has boiled for 3-10 minutes (depending on your recipe) place the lid on the inner pot and place the inner pot inside the thermal cooker. Once you shut the lid to the thermal cooker, your food will cook until it’s done, without using any more fuel!
The thermal cooker works best when it is at least 75% full. If you’re making a smaller recipe, boil water in the larger inner pot and place it in the thermal cooker. Then use the smaller inner pot to bring your food to a boil and then place it on top of the larger pot inside the thermal cooker. This gives the thermal cooker enough heated mass to keep your food cooking. The great thing about a thermal cooker is that by using both inner pots, you can cook two different kinds of food at the same time.