Generated from an approved conversation, then reviewed by participants. Corrections stay visible.
Yeasts and lactic-acid bacteria feed on sugars in the dough. Fermentation produces gas and flavor compounds; a developed gluten network traps the gas, while time and temperature control how quickly the whole system moves.
Building the idea, one step at a time
Flour and water wake the starter’s community of yeasts and bacteria. Enzymes make more simple sugars available, creating food for fermentation.
Yeast releases carbon dioxide. The gas does not push dough upward like a pump—it fills many tiny bubbles that already exist from mixing and folding.
Hydrated flour proteins link into a stretchy gluten network. That network needs enough strength to hold bubbles and enough flexibility to expand.
Temperature and time tune the balance. Warmer dough usually moves faster; a slower fermentation can build flavor, but going too far weakens the structure holding the gas.