Food safety
Fully Dry is general information compiled from official guidance (manufacturer manuals, the USDA and university extension services) and what experienced owners report. We're not food scientists, dietitians or doctors. Nothing here is medical or nutrition advice.
Updated: Oct 16, 2026
It doesn't kill germs
Freeze-drying removes water. It does not cook food or kill germs. Bacteria on food before it goes in can still be there when it comes out. So wash produce well, keep your hands and tools clean, and start with safe food.
Raw stays raw
Freeze-drying doesn't cook anything. Never eat raw meat, poultry, seafood or eggs freeze-dried raw, not even as a dry snack straight from the bag. Cook them to USDA safe minimum internal temperatures before you freeze-dry them. Use pasteurized dairy; freeze-drying won't make raw milk safe.
Storage matters
Freeze-dried food pulls moisture out of the air fast. Package fully dry food right away in airtight, moisture-proof containers, like mylar bags with oxygen absorbers. Any low-oxygen package (oxygen absorbers or vacuum sealing) is only safe when the food is completely dry: trapped moisture plus low oxygen is where botulism risk comes from. If you're not sure it's dry, don't package it; add dry time. If a bag feels soft, sticky, or smells off, throw it out.
No shelf-life promises
Shelf-life numbers you see online assume perfect drying and packaging. We don't promise any shelf life.
Where to get tested guidance
For tested guidance, use the National Center for Home Food Preservation and your local extension office. Follow your machine's manual over anything said here. Some links may be affiliate links: if you buy, we may earn a commission at no cost to you.
Tested guidance: LSU AgCenter / NCHFP freeze-drying hub, University of Minnesota Extension, University of Arizona Extension.