Garlic is only about 59% water, much drier than most vegetables, so it dries fast and gives you a lot back: a pound of peeled cloves yields close to 7 ounces dried.
The main use is homemade garlic powder. Freeze-dried slices crush easily in a spice grinder or blender, and many owners find the powder tastes closer to fresh garlic than jarred powder does. Granules, slices and powder all go straight into cooking.
Two warnings. The smell is strong and it spreads, so owners dry garlic in its own batch and wipe the chamber afterward. And do not confuse this with garlic stored in oil: NCHFP warns that garlic in oil can grow botulism bacteria if it is not kept cold. Dry garlic does not carry that risk, but do not mix the powder into oil to store.
Prep and loading
- Separate and peel the cloves. Soaking the bulb in warm water for a few minutes loosens the skins.
- Slice about ⅛ inch thick, or mince. Thin slices dry evenly and grind easily.
- Spread in a single layer on a lined tray.
- Run garlic alone, or with onions, which have the same problem.
How to tell it’s dry
- Slices snap cleanly and crush to powder between your fingers.
- Minced garlic is loose and crumbly, not tacky.
A steady weight only shows the drying has stopped; breaking the thickest piece is the check that counts. Neither is a safety test. Safety comes from tested prep, safe cooking temperatures where needed, complete drying and airtight packing. See what a kitchen scale can and cannot tell you.
Not sure? The weight check compares two weighings and the expected dry weight for garlic.
Problems and fixes
Everything in the next batch smells like garlic
Wipe the chamber walls and door gasket with warm soapy water after a garlic run. Wash the trays too.
Powder caked in the jar
Garlic powder pulls moisture from the air. Store it in small airtight jars, keep the bulk in mylar, and use a desiccant packet in the jar you use.
Rehydrating and storing
Rehydrate: Usually not rehydrated. Add slices to simmering dishes, or grind to powder. By weight, 100 g of dried garlic takes back about 137 g of water to return to fresh weight; the rehydration calculator does any amount.
Store: Mylar with an oxygen absorber for slices; small airtight jars for powder you are using.
Ways to use it
- Homemade garlic powder
- Soups, stews and sauces
- Seasoning blends
- Garlic bread butter (mix in fresh)
How much fits per batch
At a normal single layer, garlic load at roughly 1.2 lb of fresh food per square foot of tray. That works out to:
| Machine | Fresh per batch | Dried per batch |
|---|---|---|
| Harvest Right Countertop 360 | 3.0 lb | 1.26 lb |
| Harvest Right Small | 3.6 lb | 1.53 lb |
| Harvest Right Medium | 5.6 lb | 2.38 lb |
| Harvest Right Large | 9.2 lb | 3.90 lb |
| Harvest Right X-Large | 18.8 lb | 7.93 lb |
Sources
- USDA FoodData Central: garlic, raw (water content)
- Utah State University Extension: Can I Freeze-Dry That? (2026)
- Penn State Extension: Let’s Preserve: Freeze-Drying
- National Center for Home Food Preservation: freezing (blanching times)
- Iowa State University Extension AnswerLine: Preserving by home freeze drying
Water content rounded from USDA FoodData Central (garlic, raw). Cycle times are typical ranges at default settings; thickness, load and your room change them. How we put these together.