How to Dehydrate Sourdough Starter
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If you’ve ever worried about losing your sourdough starter, learning how to dehydrate sourdough starter is the perfect solution. Drying sourdough starter allows you to preserve it for long-term storage, create a reliable backup, or even package it as a thoughtful homemade gift.
Whether you’re taking a break from baking or simply want peace of mind, this simple step-by-step method will show you exactly how to dehydrate and rehydrate sourdough starter so you can revive it anytime and keep your sourdough journey going strong.
If you don’t have a starter yet, be sure to check out my post on how to make your own sourdough starter from scratch. It walks you through every step so you can start your sourdough journey from the very beginning.
Why You’ll Love Dehydrating Your Starter
Tools You’ll Need
- Dehydrator
- Blender or food processor
- Parchment paper or dehydrator liners
- Spurtle or spatula (to spread starter)
- Measuring Cups
- Mason jar or airtight container
- Label and marker (for the date and flour type)
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How to Dehydrate Sourdough Starter
- Feed your starter a few hours before dehydrating so it’s at its peak; bubbly and active.
- Spread a thin layer (about ¼ inch thick) of starter onto a dehydrator tray lined with parchment paper or just use the clean liner.
- Set your dehydrator to 115°F (46°C) and let it run for about 12 to 24 hours. The drying time may vary slightly depending on humidity and the thickness of your spread.
- Check for dryness: Your starter should be completely dry and brittle, snapping easily when broken.
- Break or blend the dried starter into small flakes or powder.
- Label and store it in a mason jar or airtight container with the date and flour type noted.
Tip: You can dry multiple types of starters (like rye, whole wheat, or einkorn) and label them for future variety.
How to Store Your Dehydrated Starter
Once your sourdough starter is completely dry, proper storage will keep it fresh and ready to use. When stored correctly, your dried starter can last 6 months to a year (and often longer).
- Mason jars: Airtight and reusable, perfect for your pantry shelf.
- Mylar bags: Ideal for long-term storage. Add an oxygen absorber for extra protection.
- Small jars or envelopes: Great for gifting small portions to friends.
- Cool, dark location: Store in a cupboard or pantry away from heat, light, and moisture.
How to Rehydrate Your Sourdough Starter
When you’re ready to bake again, it’s easy to bring your dried sourdough starter back to life. In just a few days, it’ll be bubbly and ready for bread.
On Day 1: The Beginning
- Measure out 2 teaspoons (10 grams) of dried starter.
- Add 2 tablespoons (29 grams) of warm filtered or distilled water.
- Let sit for an hour to soften the flakes.
- Stir in 2 tablespoons (16 grams) of flour, mix well, and cover loosely.
- Let rest at room temperature for 24 hours.
By Day 2: First Signs of Life
- Look for tiny bubbles.
- Feed again, 2 tablespoons (16 grams) of flour and 2 tablespoons (29 grams) of water.
- Cover and rest for 24 hours.
Day 3: Fermentation
- Your starter should smell pleasantly yeasty and have more bubbles.
- Feed again, 2 tablespoons (16 grams) of flour and 2 tablespoons (29 grams) of water, letting it rest for another 24 hours.
Day 4: Keep Feeding
- It should now be rising and showing more activity.
- Feed again, this time with 1/4 cup (31 grams) of flour and 1/4 cup (59 grams) of water, then rest for 24 hours.
By Day 5: Your Starter is rising
- You may need to pour your starter into a larger jar at this point and feed 1/2 cup (63 grams) of flour and 1/2 cup (119 grams) of water.
- Cover and let rest for 24 hours.
Day 6: Your Starter is Ready!
- Once your starter is doubling in size, it is ready to use any sourdough recipe, including bread.
- Read my post on how to make a sourdough starter below to learn how to maintain your starter.
Frequently Asked Questions
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Peace of Mind in a Jar
Learning how to dehydrate sourdough starter is one of those simple, homestead skills that gives you freedom, flexibility, and peace of mind. It’s a practical way to protect your bubbly kitchen companion, take a break from baking, and share your sourdough starter with others.
Whether you’re storing it for the season or gifting it to a fellow baker, dehydrating your starter is an easy, timeless way to keep your sourdough alive and ready to rise again whenever you are.
How to Dehydrate Sourdough Starter
Equipment
- Dehydrator
- Blender
- Parchment paper or just dehydrator liner
- Spirtle or spatula (to spread starter)
- Measuring Cups
- Mason Jar (or any airtight container)
- Label and marker (for the date and flour type)
Ingredients
- 1 cup Sourdough Starter (fed and active)
Instructions
- Feed your starter a few hours before dehydrating so it’s at its peak; bubbly and active.
- Spread a thin layer (about ¼ inch thick) of starter onto a dehydrator tray lined with parchment paper or just the liner.
- Set your dehydrator to 115°F (46°C) and let it run for about 12 to 24 hours. The drying time may vary slightly depending on humidity and the thickness of your spread.
- Check for dryness: Your starter should be completely dry and brittle, snapping easily when broken.
- Break or blend the dried starter into small flakes or powder.
- Label and store it in a mason jar or airtight container with the date and flour type noted.
Notes
How to Store Your Dehydrated Starter
Once your sourdough starter is completely dry, proper storage will keep it fresh and ready to use. When stored correctly, your dried starter can last 6 months to a year (and often longer).- Mason jars: Airtight and reusable, perfect for your pantry shelf.
- Mylar bags: Ideal for long-term storage. Add an oxygen absorber for extra protection.
- Small jars or envelopes: Great for gifting small portions to friends.
- Cool, dark location: Store in a cupboard or pantry away from heat, light, and moisture.
How to Rehydrate Your Sourdough Starter
When you’re ready to bake again, it’s easy to bring your dried sourdough starter back to life. In just a few days, it’ll be bubbly and ready for bread.ON DAY 1: THE BEGINNING
- Measure out 2 teaspoons (10 grams) of dried starter.
- Add 2 tablespoons (29 grams) of warm filtered or distilled water.
- Let sit for an hour to soften the flakes.
- Stir in 2 tablespoons (16 grams) of flour, mix well, and cover loosely.
- Let rest at room temperature for 24 hours.
BY DAY 2: FIRST SIGNS OF LIFE
- Look for tiny bubbles.
- Feed again, 2 tablespoons (16 grams) of flour and 2 tablespoons (29 grams) of water.
- Cover and rest for 24 hours.
DAY 3: FERMENTATION
- Your starter should smell pleasantly yeasty and have more bubbles.
- Feed again, 2 tablespoons (16 grams) of flour and 2 tablespoons (29 grams) of water, letting it rest for another 24 hours.
DAY 4: KEEP FEEDING
- It should now be rising and showing more activity.
- Feed again, this time with 1/4 cup (31 grams) of flour and 1/4 cup (59 grams) of water, then rest for 24 hours.
BY DAY 5: YOUR STARTER IS RISING
- You may need to pour your starter into a larger jar at this point and feed 1/2 cup (63 grams) of flour and 1/2 cup (119 grams) of water.
- Cover and let rest for 24 hours.
DAY 6: YOUR STARTER IS READY!
- Once your starter is doubling in size, it is ready to use any sourdough recipe, including bread.
- Read my post on how to make a sourdough starter below to learn how to maintain your starter.
Did you make this recipe?
If you tried this recipe, be sure to rate it and leave a comment below! Craving more? Follow along with me on Pinterest for more delicious sourdough recipes & ideas!
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