Determine the Types of Foods used in space?

Weight and volume have always been the primary design factors for every piece of hardware launched into space. The shuttle is no exception. Weight allowed for food is limited to 1.72 kg per person per day, which includes the 0.45 kg of packaging weight. This as you would realize, require special processing and packaging technique.  What are these? Let us see.

Foods are individually packaged and stored for easy handling in the zero gravity of space. All food is precooked or processed so it requires no refrigeration and is either ready-to-eat or can be prepared simply by adding water or by heating. The only exceptions are the fresh fruits and vegetables stored in the fresh food locker. Without refrigeration, the carrots and celery must be eaten within the first two days of the flight.