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How to Dehydrate Apples

Pretreat, slice, dry and test.

By The Dehydrator Report Editors · Updated November 11, 2026 · 4 min read

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Apples are the classic first dehydrator project: cheap, forgiving and done in a day.

Step by step

  1. Wash, core and slice evenly; peeling is optional.
  2. Pretreat to prevent browning. Clemson's ascorbic acid dip: 1 teaspoon powdered ascorbic acid in 2 cups water, soak 3 to 5 minutes.
  3. Dry. Oregon State Extension sets apples at 145°F for two to three hours, then 135°F to finish. Clemson gives 6 to 12 hours in a dehydrator.
  4. Test. Cooled pieces should show no moisture when cut and shouldn't stick together when folded.
  5. Condition 7 to 10 days, then store airtight.

Storage

About a year at 60°F, six months at 80°F, per Clemson.

Pack dried food airtight once it's cool and conditioned. Our sister site explains vacuum sealing dried food and vacuum sealing mason jars.

Sources

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