This is a tried and true project that provides you the means to easily cook food during a bug out or at home during a power outage.
You’ll need melted wax, corrugated cardboard, and an empty and clean tuna can.
First, cut the cardboard into strips as wide as the tuna can is tall. You want to cut the cardboard across the corrugation, so that when you look at the long side of the strips you’ll see the “holes” from the corrugation. Take the strips and wrap them around the inside of the can, rolling them around and around to fill the can completely. When you’re done, if you look down into the can you should be able to see all those corrugated “holes.”
Melt your wax in either a double boiler or just place a clean soup can in a pot of water, melting the wax inside the can. Pour the melted wax into the tuna can, filling all the spaces in the cardboard. You can also use a small piece of wax string to put into the wax as a wick, but this isn’t truly necessary.
When the wax is cool, simply light the cardboard or wick. These burners work great with the Hobo Stove I described in an earlier post. You can adjust the heat given off by the burner by placing a piece of folded aluminum foil over part of the can. When you’re done cooking, just smother the flame by covering the top of the can with foil completely or using some other heat resistant material.