How-to
How to Dehydrate in an Air Fryer
How to dehydrate in an air fryer: the temperature to set for herbs, fruit, vegetables and jerky, plus the steps, timing and mistakes to avoid.
The lowest number on an air fryer's temperature dial decides whether it dries food or cooks it. Dehydrating is slow, low and airy, the opposite of the hot blast used for fries, so the same machine can do both jobs only if it can turn down far enough and the food is set up to give up its moisture evenly.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases.
Can your air fryer dehydrate at all?
Yes, provided it can run cool enough. Many newer models carry a dedicated dehydrate program, and others let the dial drop low enough to do the job by hand. A machine whose lowest setting sits well above the drying range will cook and crisp instead, which gives crunchy kale chips or zucchini crisps but not true dried fruit or pliable jerky.
On the products featured here, the Ninja Air Fryer 4 Qt lists a dehydrate program with a 105°F floor, and the Instant Pot 6QT Vortex Plus Air Fryer is adjustable from 95°F. For models with a true low-temperature setting, see the air fryer comparison for dehydrating.
What temperature and time suits each food?
Herbs and delicate greens suit 95 to 110°F, fruits 125 to 140°F and vegetables 125 to 135°F, while jerky runs at 155 to 160°F, the point tied to the USDA's 160°F internal temperature for beef jerky. The chart assumes a single layer of even slices and a machine able to hold that setting.
| Food | Thickness | Temperature | Time |
|---|
| Beef jerky | 1/8 inch | 160°F | 2 to 3.5 hours |
| Apple chips | 1/8 inch | 135°F | 3 to 4 hours |
| Banana chips | 1/4 inch | 135°F | 3 to 5 hours |
| Zucchini chips | 1/16 inch | 135°F | 3 to 4 hours |
| Kale chips | Whole leaf | 125°F | 1.5 to 2 hours |
| Rosemary or thyme | Whole leaf | 95°F | 1 to 2 hours |
Seven steps to dehydrate food in an air fryer
The routine is the same for every food; only the temperature and the time change. Slicing evenly is the prep step that matters most, because thin and thick pieces finish at different times.
- Wash the food, then pat it completely dry with paper towels.
- Slice every piece to the same thickness, using a mandoline if you have one.
- Pre-treat if needed: a light lemon-water dip keeps apple and banana slices from browning, and meat strips should be marinated and patted dry.
- Lay the pieces in a single layer with visible space between them, never overlapping or stacked.
- Set the dehydrate program or the lowest temperature that suits the food, using the chart above, and follow the manual for how the model vents.
- Check at the midpoint, flip or rotate the pieces, and move any that dry faster.
- Cool everything fully on a rack before sealing it in an airtight container, then store it somewhere cool and dark.
How long does it take, and how do you know it is done?
Times vary with the fan power of the model, the thickness of the pieces and how watery the food started, so treat the chart above as a starting point and check at the midpoint rather than trusting the clock.
Doneness is a matter of feel. Vegetables should turn brittle and snap when bent, fruit should be leathery without a sticky center, and meat should be firm with no moisture when pressed. Anything soft or tacky needs more time.
Why does too much heat ruin a batch?
Setting the temperature too high causes case hardening: the outside dries into a firm crust while the center stays moist, which looks finished but feels soft when pressed. The fix is to use lower heat for a longer time, so moisture can move slowly from the center outward.
Frequently asked
Will an air fryer without a dehydrate button still dry food?
Yes, if its lowest setting is about 170°F or below. Run it in short stretches and check often; results come out slightly more toasted than true dehydration. At 200°F or more it cooks and crisps instead, so expect kale-chip or zucchini-crisp textures.
How does drying in an air fryer compare with a dedicated dehydrator?
An air fryer handles small batches, one to two trays at most, against four to twelve trays on a dedicated dehydrator. For occasional jerky, fruit chips or herbs it is a capable, space-saving choice; regular large batches suit a dehydrator better.