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dehydrated sourdough starter

How To Dehydrate Sourdough Starter

  • Author: William Mack
  • Total Time: 72 hours 5 minutes
  • Yield: Varies


Learn how to dehydrate your sourdough starter for long-term storage or travel.


  • Sourdough starter fed within 12 hours


  1. Line a sheet tray with parchment or a silicone baking mat.
  2. Pour your active starter on the lined tray and spread it into a very thin and even layer.
  3. Leave the starter uncovered at room temperature until it is completely dry and brittle, 24-72 hrs.
  4. Break the dried starter into shards or pulverize it into powder.
  5. Place in an airtight container and store in a cool dark place for months to years.


Speed up drying time by increasing airflow with a fan or increasing temperature staying under 100 F.

  • Prep Time: 5 minutes
  • Drying Time: 72 hours
  • Method: Baking
  • Cuisine: Sourdough

Keywords: How to dehydrate sourdough Starter, Drying sourdough starter