Once you have all the basics covered in a survival situation, it you need to create functional tools that make your life easier and allow you to perform critical tasks, such as cooking food.
You can always use a traditional campfire, but building a large fire is not always practical.
One relatively easy-to-make solution to cooking food is to make yourself a makeshift stove using cans.
For this design you need a No. 10 can and No. 2 tall can, 4 inches of wire mesh, 4 small screws and about 2 feet of sturdy wire. You will also need a way to drill holes in the can (or puncture it) and a way to cut the metal (snips or a can opener.)
The instructions on the next page show you how to take these materials and tools and assemble this simple but amazingly functional stove.