Ingredientfresh yeast
leaveningreactivitystructureConditionalHigh risk
The call
Use active dry yeast
for fresh yeast.
Use yeast-specific conversions rather than assuming 1:1.
Ratio
varies
Why
Instant, active dry, fresh yeast, and sourdough inputs can overlap, but fermentation rate and water content differ enough that the conversion matters.
Flavor
Sourdough contributes more acidity and complexity.
Texture
Rise timing and final crumb can shift.
Alternatives, ranked
2 more options
| Candidate | Ratio | Confidence | Risk | Notes | |
|---|---|---|---|---|---|
| 1 | instant yeast | varies | B·0.80 | High | Yeast families are substitutable with ratio changes. |
| 2 | sourdough starter | varies | B·0.80 | High | Yeast families are substitutable with ratio changes. |
Adjustments
- timing
- Watch the dough, not the clock, after switching yeast forms.
Where to be careful
- Highactive dry yeast — Medium to high in long-fermented doughs.
- Highinstant yeast — Medium to high in long-fermented doughs.
- Highsourdough starter — Medium to high in long-fermented doughs.