Meat needs higher heat
USDA recommends drying meat for jerky at 145 to 165 degrees F to destroy bacteria like Salmonella and E. coli. Fruits and herbs dry safely at lower temperatures (125 to 135 degrees F) because their acidity or low protein content inhibits bacterial growth.
Drying meat at too low a temperature creates conditions where bacteria survive in a warm, moist environment for hours, the ideal conditions for rapid multiplication.
Thin, even, consistent
Slice food uniformly thin (1/8 to 1/4 inch for most items). Uniform thickness ensures even drying. Pieces that are too thick stay moist in the center; pieces that are too thin become brittle.
Arrange on dehydrator trays in a single layer without overlap. Check periodically and rotate trays. Food is done when it is leathery (fruit) or cracks when bent (jerky), with no visible moisture.
Airtight, dark, cool
Store dehydrated food in airtight containers (mason jars, vacuum-sealed bags) in a cool, dark place. Properly dried food lasts 6 to 12 months at room temperature. Moisture is the enemy; if condensation appears inside the container, the food was not dried thoroughly enough.
- Jerky: 145-165°F. Fruit/herbs: 125-135°F
- Slice uniformly thin (1/8 to 1/4 inch)
- Done when leathery (fruit) or cracks when bent (jerky)
- Store airtight in cool, dark location
- If condensation appears in container, food was not dry enough
- USDA Home Food Preservation — NCHFP dehydrating guidance.