Lesson 2 of 4
Strength, folds & fermentation
Bulk fermentation builds flavor and gas while the gluten network learns to hold both.
Ingredients for this learning path
- 500 g bread flour
- 350 g water, plus up to 10 g if needed
- 50 g ripe stiff starter (50% hydration)
- 10 g fine salt
Equipment
- Digital scale
- Mixing bowl and cover
- Straight-sided container
- Bowl scraper
- Lined bowl or banneton
- Oven-safe covered bread pot
The lesson
- 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.
- 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.
- 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.
- 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.
The baker’s note
A small dough sample in a straight-sided jar can help you observe volume, but it may warm or cool differently from the main dough.
Practice
Photograph the dough before and after bulk; record the rise and temperature.
Technique lessons may require a separate complete formula. Read the full path before mixing.
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 checkLet’s work through it
- 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.
- 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.
- 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.
- 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.
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
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 journalMake it part of your practice
Photograph the dough before and after bulk; record the rise and temperature.
YOUR BAKING JOURNAL
Remember what the dough taught you.
Record your temperatures, timing, observations and one thing to try next.
Sign in to keep a journal