When that time comes, along with freeze-dried food and water-purification tablets and plenty of ammo, a person is going to need some gold in his camouflage pockets.

Most of what we trim off our food can go into making stock that’s leaps and bounds ahead of anything that came out of a freeze-dried cube. And the remainder can feed the garden by becoming compost.

This paper briefly introduces the flavor, species, producing technology and equipment of vacuum freeze-dried food.