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Sourdough essentials · Beginner

Your first beautiful loaf

Mix, ferment, shape and bake one naturally leavened loaf—and understand what the dough is telling you.

LESSON 2 OF 4 · 10 min read

Strength, folds & fermentation

Bulk fermentation builds flavor and gas while the gluten network learns to hold both.

Go to guided practice & lesson check

Let’s work through it

  1. After 30 minutes, wet your hand, lift one side until you feel resistance and fold over the center. Repeat around the bowl. Do not tear the dough.
  2. Repeat for three sets, roughly 30 minutes apart. Stop adding folds once dough holds its shape and feels elastic; more handling is not always better.
  3. Let the dough rest, covered, until it is visibly aerated, gently domed and jiggly, with bubbles at the edges. Use a roughly 40–60% volume increase as an initial guide for this dough, then adjust from your bake results.
  4. With this small amount of stiff starter, fermentation can take many hours. Temperature and starter strength matter more than a fixed clock. End bulk earlier in warmer dough that will continue fermenting during shaping and cooling.

LEARN IT. TRY IT. MAKE IT YOURS.

Your practice bench

Read the whole lesson first, then work at your own pace. Check a step when you’ve practiced or reviewed it.

0 of 4 steps

STEP 1 OF 4

After 30 minutes, wet your hand, lift one side until you feel resistance and fold over the center. Repeat around the bowl. Do not tear the dough.

MAKE THE BAKER’S CALL

The planned bulk time has passed, but the dough is still dense. What next?

TAKE IT TO YOUR OWN KITCHEN

Your next small experiment

Photograph the dough before and after bulk; record the rise and temperature.

Record what happened in my journal
How do you feel about this skill?

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Make it part of your practice

Photograph the dough before and after bulk; record the rise and temperature.

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YOUR BAKING JOURNAL

Remember what the dough taught you.

Record your temperatures, timing, observations and one thing to try next.

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