Description
A pre-ferment used in bread-making to enhance flavor and texture through controlled yeast activity.
Technical
Poolish is a liquid preferment combining equal parts flour and water (by weight) with a small amount of commercial yeast (Saccharomyces cerevisiae), initiating enzymatic breakdown of starches and limited gluten development. The fermentation produces organic acids (lactic, acetic) and CO2, which later contribute to dough extensibility and oven spring.
Culinary Significance
Provides superior crust color, open crumb structure, and complex flavor compared to direct yeast methods, while remaining less acidic than sourdough starters.
Science
Primary Reaction
Fermentation
Parameters
Temperature
22°C optimal
18°C to 26°C range
Time
14 hours
12 hours – 16 hours
Equipment