Improvements

Although the solar box cooker works well, there are still some things we would do different to improve the design and quality of cooker. 

Materials:  First of all we would be attempt to eliminate the use of all toxic materials.  This would entail being sure to use a non-toxic flat black paint for the inside of the small box to avoiding off-gasing, using a rope gasket (similar to ones used for a wood stove door) rather then a silicon gasket, and finding an alternative sealer to silicon appoxy.    

Design:  If the materials were available we would make a basic change in the dimensions of the boxes so they would be elongated (left to right) allowing a larger area to cook in and a greater area of glazing for radiation to penetrate.  Regardless of the size of the cooker we would also design a prop (similar to one used for the hood of a car engine) to allow the cook to have both hands free when adding or removing food from the cooker.  We would also seek a better way to attach the aluminim cans to the reflectors eliminating all rough and sharp edges.  Finally we would also like to find a different way to frame the glass, only becuase the process was tedious and difficult.  We would also add two handels to the sides of the outer box to move easily.