Poolish
A loose, 100%-hydration overnight preferment that adds mild flavour complexity and extensibility to the final dough.
- Flour prefermented
- 20-50%
- Hydration
- 100-100%
- Fermentation time
- 8-16h
- Temperature
- 18-22C
Contribution
Flavour: Adds a mild, slightly sweet, yeasty complexity without strong sourness
Strength: Moderate; poolish is more about flavour and extensibility than raw strength
Extensibility: Increases extensibility, making the final dough easier to stretch thin
Styles using this preferment
Adds mild flavour complexity and easier stretch without changing the style's defining characteristics.
Used by some pizzaiuoli who want extra flavour complexity and extensibility beyond a straight direct dough — never a requirement of the AVPN standard itself.
Increases extensibility, helping the very wet dough stretch to fill the tray.
An alternative to biga among bakers who prefer poolish's extensibility contribution.
Contributes to the style's characteristically light, airy, highly digestible crumb.
As used in the modern trademarked pinsa method's long, cold pre-fermentation stage — ancient/historical pinsa had no formal preferment.
Scheduling advantages
- Can be mixed the night before, fitting a next-day bake schedule
Risks
- An over-fermented poolish (left too long or too warm) can turn overly sour or weaken the final dough's structure