How to Dehydrate Apples in an Air Fryer (Step-by-Step)

If you have a bowl of apples going soft on the counter, you can dehydrate apples in an air fryer and turn them into a shelf-stable snack using two ingredients and no special equipment. No dehydrator, no oven tied up for half a day, no added sugar.

The part most recipes get wrong: dehydrating is not the same as making crispy apple chips in twenty minutes. Real dehydration happens low and slow, and it’s what gives you apple slices that keep for months instead of days. Below you’ll find both methods, the exact temperature and slice thickness that work, and how to tell when they’re actually done.

Can You Really Dehydrate Apples in an Air Fryer?

Yes — and if your air fryer has a dehydrate setting, it’s doing exactly what a standalone dehydrator does: moving warm air across the food at a low enough temperature that moisture leaves without the fruit cooking.

If your air fryer doesn’t have a dehydrate button, you can still do this as long as it goes down to about 150°F or lower. If your model bottoms out at 200°F or higher, skip to the quick apple chips method below — you’ll get a great snack, just not a shelf-stable one.

One honest caveat: an air fryer basket holds a fraction of what a dehydrator tray does. This is a perfect method for two or three apples. If you’re processing a bushel after apple picking, a dehydrator is the better tool.

What Temperature to Dehydrate Apples in an Air Fryer

135°F is the sweet spot. If your air fryer’s lowest setting is 150°F, that works too — just start checking an hour earlier.

Here’s the timing, and it depends entirely on how thick you slice:

Slice thickness	Time at 135°F	Result
1/8 inch	4–6 hours	Crisp, snappable chips
1/4 inch	6–8 hours	Chewy, leathery dried apples
1/4 inch+	8–10 hours	Chewy, and harder to dry evenly

If you’ve seen recipes claiming you can dehydrate apples in fifteen minutes at 150°F, they’re describing something else. At that temperature and time you’ll have warm, floppy apple slices — not dried fruit. Dehydration takes hours because you’re removing roughly 80% of the water in the fruit.

Ingredients

• 2–3 firm apples. Honeycrisp, Fuji, Gala, and Pink Lady dry sweet. Granny Smith stays tart and holds its shape beautifully. Cosmic Crisp barely browns at all, if you can find it.
• 1 teaspoon ground cinnamon (optional). Pumpkin pie spice is excellent in fall.
• 1 tablespoon lemon juice + 2 cups cold water (optional, for the anti-browning soak)

Skip soft varieties like McIntosh — they collapse and dry unevenly.

Do You Need to Soak Apples Before Dehydrating?

Not strictly, but it makes a visible difference. Apples brown when the cut flesh oxidizes, and that happens fast — within a few minutes of slicing.

A quick acid soak stops it. Stir 1 tablespoon of lemon juice into 2 cups of cold water, drop the slices in for 5 minutes, then drain and pat them thoroughly dry with a clean towel. Wet slices take much longer to dehydrate, so don’t skip the drying step.

The lemon does a second job: it helps ground cinnamon stick to the slices instead of blowing off in the air fryer.

If you’d rather not use lemon, ascorbic acid powder (1/2 teaspoon per 2 cups water) does the same thing without any citrus flavor.

How to Dehydrate Apples in an Air Fryer, Step by Step

Step One: Wash and Slice

Rinse the apples and dry them. Core them with an apple corer if you want rings, or slice them in half and cut around the core if you want half-moons.

Slice them 1/8 inch thick using a mandoline. This is the single most important step in the whole recipe. Hand-cut slices vary in thickness, which means some finish in four hours and others are still damp at six — and any slice that isn’t fully dry will mold the whole jar.

You can leave the peel on. It adds a little chew and a lot of fiber. Peel them only if you plan to rehydrate the apples later for baking.

Step Two: Soak and Dry

Slide the slices into the lemon water for 5 minutes. Drain, then lay them on a clean kitchen towel and blot both sides until no moisture transfers to your hand.

Step Three: Season

Toss the dried slices in a large bowl with the cinnamon until lightly coated. A light dusting is plenty — heavy cinnamon just falls to the bottom of the basket.

Step Four: Arrange in a Single Layer

Lay the slices flat in the air fryer basket or on the racks, with a little space between each one. Do not overlap them. Any spot where two slices touch stays wet. If you have an air fryer oven with multiple racks, use them all — this is where an air fryer oven has a real advantage over a basket model.

Step Five: Dehydrate

Set the air fryer to 135°F (or the dehydrate setting) and run it for 4 hours to start. Rotate or flip the slices every 90 minutes or so. Air fryers have hot spots, and the slices nearest the fan will finish first. If you’re using stacked racks, swap their positions each time.

Step Six: Check for Doneness

Pull one slice out and let it cool for a full minute — apples firm up dramatically as they cool, and a hot slice always feels underdone.

• Chewy dried apples should feel leathery and pliable, and show no beads of moisture when you tear one in half.
• Crisp apple chips should snap cleanly.

If they’re still tacky or bendy in a way that feels damp, keep going and check every 30 minutes.

Step Seven: Cool Completely

Move the slices to a wire rack in a single layer and let them cool for at least an hour before you even think about a container. Warm apples release steam, and steam trapped in a jar is how a batch goes moldy in week two.

Quick Method: Air Fryer Apple Chips in 20 Minutes

If your air fryer won’t go below 200°F, or you just want a snack tonight, you can crisp apple slices instead of dehydrating them.

Slice 1/8 inch thick, season, and air fry at 300°F for 15–20 minutes, flipping every 5 minutes and watching closely at the end — the sugars caramelize fast and they go from golden to burnt in about ninety seconds.

These come out crisp and delicious, but they are not shelf-stable. Because they cooked rather than dried, they retain more moisture than you’d think. Eat them within about a week, stored airtight. For a version built specifically around this fast method, see our air fryer apple chips.

How to Store Dehydrated Apples

Properly dried apples last 6 to 12 months in an airtight glass jar kept somewhere cool and dark. A pantry shelf is ideal.

Skip the refrigerator. The temperature swings pull condensation into the jar every time you open it, and your chips go soft.

Condition them first

This is the step almost every air fryer recipe leaves out, and it’s what separates a jar that lasts a year from one that molds.

Pack the cooled slices loosely into a jar, seal it, and leave it on the counter for 7 days, shaking it once a day. Conditioning lets any residual moisture redistribute evenly among the slices.

If you see condensation on the inside of the glass at any point during that week, the batch isn’t dry enough. Spread the slices back in the air fryer for another hour and repeat.

For longer storage, vacuum-seal the conditioned apples or freeze them — they’ll keep well past a year that way.

Troubleshooting

My apple chips are chewy instead of crisp. They need more time, and probably thinner slices. Chewy is a legitimate result at 1/4 inch; if you want a snap, you need 1/8 inch and a longer run.

They turned brown. The slices oxidized before they hit the air fryer. Next time use the lemon soak, and work faster between slicing and seasoning. Brown apples are perfectly safe to eat — they just look duller.

Some slices are done and some are still wet. Inconsistent thickness. A mandoline fixes this permanently.

They went soft after a few days in the jar. Either they weren’t fully dry, or they were still warm when you sealed them. Re-dry and condition properly.

They taste bitter or scorched. Your air fryer is running hotter than the display says, which is common. Drop the temperature setting or shorten the run and check earlier.

Ways to Use Dried Apple Slices

Beyond eating them straight from the jar:

• Stir them into oatmeal — they rehydrate as it cooks. Our air fryer cherry oatmeal breakfast bake takes them well in place of the cherries.
• Chop and fold into muffin batter, like these air fryer caramel apple muffins.
• Add to homemade trail mix with almonds and dark chocolate.
• Crumble over yogurt, or over a stack of air fryer pancakes.
• Simmer 1/2 cup in a mug of water or cider for instant spiced apple tea.
• Use as a salad topper with sharp cheddar and toasted walnuts.

More Dehydrating and Apple Recipes

Once you’ve got the method down, the same low-and-slow approach works across the board:

• Air Fryer Dehydrated Blueberries — same technique, smaller fruit, shorter run
• How to Dehydrate Grapes for Homemade Raisins — the longest dry of the three, but worth it
• Air Fryer Baked Apples — for when you want warm and soft instead of dry and crisp
• Air Fryer Apple Fries — cinnamon-sugar coated wedges with caramel dip

You can browse everything else in our air fryer recipe collection.

Frequently Asked Questions

How long does it take to dehydrate apples in an air fryer? Four to six hours at 135°F for 1/8-inch slices, and six to eight hours for 1/4-inch slices. Thickness matters far more than the number of apples in the basket.

Do you have to peel apples before dehydrating them? No. The peel dries fine and adds fiber and color. Peel only if you’re planning to rehydrate the slices for baking.

Can you dehydrate apples without a dehydrate setting? Yes, as long as your air fryer will hold a temperature around 150°F or below. If it won’t go under 200°F, use the quick apple chips method instead.

Why are my dehydrated apples still sticky? They’re under-dried. Sticky means residual moisture, which will spoil the batch in storage. Run them another hour and condition them for a week before sealing.

How do you know when dehydrated apples are done? Cool a slice for a full minute, then tear it. There should be no visible moisture at the tear and no cool, damp feel in the center.

Are dehydrated apples healthy? They’re just apples with the water removed — no oil, no added sugar in this recipe. Keep in mind the sugar concentrates as the water leaves, so a handful of chips is roughly a whole apple’s worth of sugar.