Freeze drying is the gold standard of long-term food preservation. It works by freezing food solid, then slowly removing the moisture through a vacuum process called sublimation. This turns ice directly into vapor without going through the liquid phase. The end result? Food that keeps its original shape, flavor, and most of its nutrition for up to 25 years or more.


"Freeze-Dried Foods: The Prepper’s Powerhouse | Episode 524"