Most of us assume that our supermarkets will never sell us food that has gone bad, and for the most part this seems to be true. While some fruits, vegetables, and meats might not be as fresh as we would like if we were to go to the source like a butchers or farmer’s market, they are in relatively good condition. However once in a while we do get a bad piece of fruit or meat, but thanks to the folks at MIT, hopefully purchasing food that has gone bad will be a thing of the past.