How to Dehydrate Sourdough Starter for Shipping (or Sharing!)
- Jacobs Haven
- Jun 1
- 3 min read
There’s something magical about sharing sourdough starter. Whether you’re mailing it to a friend across the country or offering it to your farm customers, dehydrated sourdough starter is a clever, reliable, and shelf-stable way to spread the joy of baking. It’s like sending a living time capsule—one that will rise again with a little water and flour. In this guide, you’ll learn how to dehydrate sourdough starter step-by-step, how to package it for mailing, and why this old-world preservation method is making a big comeback.
Why Dehydrate Your Sourdough Starter?
Dehydrated sourdough starter is:
Lightweight – Perfect for mailing in a regular envelope.
Shelf-stable – Can last months (or longer!) without refrigeration.
Easy to revive – With just a bit of water and time, it’s back in action.
A beautiful gift – Think of it as sending someone their first loaf in powder form.

What will you need???
Active, bubbly sourdough starter (fed within the last 4–6 hours)
Parchment paper or a silicone baking mat
Baking sheet
Offset spatula or spoon
Clean, dry workspace
Optional: Dehydrator (if you want a faster method)
Step-by-Step: How to Dehydrate Your Starter!
1. Feed Your Starter
Start with a well-fed, active starter. You want it bubbly, energetic, and recently refreshed—ideally at its peak fermentation. A tired starter won’t dry well, and may not revive as easily later.
Tip: Feed in a 1:1:1 ratio (starter:water:flour) for optimal balance.
2. Spread it Thin
Line a baking sheet with parchment or a silicone mat. Use a spatula to spread the starter into a thin, even layer—about the thickness of pancake batter. The thinner the spread, the faster it will dry.
3. Let It Dry
Leave the tray in a warm, dry spot away from direct sunlight. It typically takes 24–48 hours to fully dry at room temperature. If you're in a humid area, you can place it in an oven with just the light on (no heat) or use a food dehydrator at 95°F (35°C). You’ll know it’s ready when it peels easily off the paper and snaps instead of bends.
4. Break It Up
Once dry, break your starter into flakes or crumble it into a powder using your hands or a food processor. These little golden chips are your shelf-stable sourdough starter.

How to Package and Ship It
Now that you’ve got dry starter, let’s make it mailable.
What to include:
1–2 tablespoons of dehydrated starter (enough to revive and share!)
Small airtight bag (like a snack-sized Ziploc or compostable bag)
A printed instruction card for rehydration (see below)
Optional: A cute label, ribbon, or note about the starter’s “lineage”
Put everything into a standard envelope or padded mailer. No refrigeration needed!
Rehydration Instructions to Include
Here’s a simple version you can print for recipients:
How to Revive Your Sourdough Starter
Place 1 tbsp of dried starter in a clean jar.
Add 2 tbsp of warm water and stir. Let sit for a few hours until the flakes dissolve.
Add 2 tbsp flour and stir. Let rest 12–24 hours.
Repeat feeding daily (1:1:1 ratio) until bubbly and active (usually 3–5 days).
You're ready to bake when it doubles within 4–6 hours of feeding!
Dehydrating sourdough starter is like bottling wild magic. It’s a blend of science, tradition, and love—something that can sit quietly in an envelope until it’s brought back to life in someone else’s kitchen. Whether you're building a microbusiness, growing a homestead community, or just want to give a meaningful gift, this is one of the simplest ways to spread the sourdough spark.
Happy drying—and even happier sharing. 🍞✨
You can follow the journey:
On Instagram: @JacobsHavenFarm
On the web: www.jacobshaven.com
Through the newsletter (don’t miss the giveaways, early CSA access, and behind-the-scenes grit)
Because sometimes, the best stories start when someone finally says, “So… we bought a farm.”
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