If a stick shoots once a year, then an empty box can turn into a camera. And this is not a metaphor at all. Moreover, the size is not important: everything from an empty matchbox to a box from under the refrigerator will do. Here is another proof of how simple, elegant and expressive physics can be. Popular mechanics has selected the most interesting things about an unusual device created from garbage and science.
If you need to keep large stocks of food in the refrigerator, use the right containers for this. The choice of containers directly depends on the condition of the products after some time.