Culture Guide
The Sourdough Smell Guide (Adapted From NCSU Research)
Early-stage cultures pass through predictable aroma phases:
Phase 1: Fresh Flour → Cereal, Bran, Wheat
- Dry flour
- Wet grain
- Dough-like
Phase 2: Bacterial Bloom → Tangy, Fruity, Sour, Yogurt, Cheese
- Mildly sour
- Fruity-esters
- Overripe fruit
- Buttermilk / yogurt notes
- Light cheese (normal)
Phase 3: Acidification → Sharp, Vinegary, Solventy
- Sharp tang
- Nail-polish remover
- Alcohol / wine
- These are signs of imbalance, not failure
Phase 4: Yeast Stabilization → Clean, Bright, Mildly Tart
- Balanced sour
- Pleasantly tangy
- Soft fruit notes
- Clean fermentation smell
Phase 5: Mature Culture → Predictable + Neutral
- Mild tang
- Sweet grain
- Stable “bread-dough” aroma
Important Reminder (Breaducation Style)
Odd smells do not mean the culture is wrong — only that the ecosystem is evolving.
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