freeze drying
Freeze drying is one of the most efficient methods for preserving food. From produce to meats, and everything in between, a freeze dryer can remove nearly all of the moisture from foods. This creates a dried product that has a very long shelf life, sometimes up to 25 years or more!
I would start by reading my Guide to Preserving Food with a Freeze Dryer and then learn How to Freeze Dry Eggs and How to Freeze Dry Milk.