Freeze-Dried Fruit
You have NASA to thank for freeze-dried snacks. Freeze drying technology was developed by NASA to make snacks more portable for long Apollo missions, according to the NASA Technology Transfer Program.
Using this process, food is cooked, frozen and then slowly heated in a vacuum chamber to remove the ice crystals. The result is food that maintains 98% of its nutritional value, with only 20% of its original weight.
