How to Dehydrate Apples
Slice apples about 1/4 inch thick, dip in lemon water to stop browning, and dry at 135F (57C) for 6 to 12 hours until leathery with no moist spots.
Dried apples are one of the easiest things to make in a dehydrator: slice, treat briefly against browning, and dry low and slow until leathery. The whole job is mostly waiting.
Choose and slice
Firm, sweet-tart apples hold up best; softer varieties still work but dry chewier. Wash, core, and slice evenly, about 1/4 inch, so every piece finishes together. A mandoline gives the most uniform slices, which is the single biggest factor in even drying. Peel if you prefer a softer chip; leave the skin on for more structure and fibre.
Stop the browning
Cut apple flesh darkens as it meets air. To keep slices pale, dip them for a few minutes in water with lemon juice or a little citric acid, then drain. This is purely cosmetic, browned apples are perfectly safe and still taste good, but the dip makes a nicer chip. A dusting of cinnamon at this stage is a popular touch.
Lay out and dry
Arrange slices in a single layer with space between them so air can move. Dry at about 135F (57C), the usual fruit setting. Times vary widely with thickness, load and machine, but a rough guide:
| Texture wanted | Approx time at 135F | Result |
|---|---|---|
| Chewy rings | 6–8 hours | Bendy, soft snack |
| Leathery | 8–10 hours | Standard dried apple |
| Crisp chips | 10–12+ hours | Snaps when bent |
If your dehydrator has a vertical fan, rotate the trays once or twice for even results. A rear-fan model dries evenly without shuffling; see how a dehydrator works for why airflow matters.
Test for doneness and condition
Always test a cooled slice, warm fruit feels softer than it really is. It should be leathery and, for chips, brittle, with no wet or spongy spots. Because slices finish at slightly different rates, many people "condition" the batch: seal the cooled apples loosely in a jar for a week, shaking daily; if moisture beads appear, dry a little longer before final storage.
Store them well
Cool completely, then store airtight away from heat and light. For the longest, best-quality keeping, a vacuum sealer removes the air that causes staleness. See how long dehydrated food lasts for realistic timelines. Ready to buy? Start with the best food dehydrators, or the best dehydrator for fruit.
Frequently asked questions
Do I have to peel apples first?
No. The peel is edible and holds nutrients, so peeling is optional. Peeled slices dry a little faster and softer; unpeeled keep more structure.
Why did my apples turn brown?
Cut apples oxidise in air. A short soak in lemon or citric-acid water before drying keeps them pale. It is a quality step, not a safety one.
How do I know they are done?
Cool a slice, then bend it. Chewy and leathery with no beads of moisture means done; still soft or sticky means more time.