Hot peppers keep their color and heat after freeze-drying, which air-drying often dulls. Sliced jalapeños go straight into chili and nachos, and ground peppers make powders far brighter than store-bought.
The heat is concentrated once the water is gone. Capsaicin dust from grinding dried peppers stings eyes and lungs, so grind outdoors or with a mask.
Prep and loading
- Wear gloves. Wash and slice ¼ inch thick; remove seeds for milder slices.
- Spread in a single layer.
- Habaneros and Thai chilies can be dried whole if slit lengthwise.
How to tell it’s done
- Slices and skins crack crisply.
Not sure? The weight check compares two weighings and the expected dry weight for hot peppers.
Problems and fixes
Eyes burned when grinding
Capsaicin dust. Grind outdoors, let the dust settle before opening the grinder, and wear a mask.
Rehydrating and storing
Rehydrate: Add dry to cooking. By weight, 100 g of dried hot peppers takes back about 1113 g of water to return to fresh weight; the rehydration calculator does any amount.
Store: Jars with oxygen absorbers.
Ways to use it
- Chili and nachos
- Hot pepper powder
- Salsa
- Seasoning rubs
How much fits per batch
At a normal single layer, hot peppers load at roughly 1.8 lb of fresh food per square foot of tray. That works out to:
| Machine | Fresh per batch | Dried per batch |
|---|---|---|
| Harvest Right Countertop 360 | 4.5 lb | 5.9 oz |
| Harvest Right Small | 5.4 lb | 7.2 oz |
| Harvest Right Medium | 8.4 lb | 11.1 oz |
| Harvest Right Large | 13.8 lb | 1.14 lb |
| Harvest Right X-Large | 28.1 lb | 2.32 lb |
Sources
- USDA FoodData Central: peppers, jalapeno, 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 (peppers, jalapeno, raw). Cycle times are typical ranges at default settings; thickness, load and your room change them. How we put these together.