The Refugee Plastic bags to provide a cooking chamber are not recommended. They are not normally stocked in rural stores and must be supplied and replaced for the life of the cooker. Using plastic bags makes this an unnecessarily expensive cooker.
Plates are available at any government printing office, local commercial printer or newspaper.
Cut and fold the printing plate as indicated on the above drawing. If you do not have this size or a larger printing plate, staple or rivet two or more smaller plates together. A smaller reflector the same shape will not cook as much food nor as fast. Nail a wood board to the bottom for weight and stability. It also insulates the bottom.