The Science Behind Yeast and How It Makes Bread RiseYeast — whether from packets, jars, or cakes sold at stores, or even from a starter you’ve prepared at home — is essential to bread making. And yes, it is alive, even if it is sold dried. Yeasts are small, single-celled organisms that feed off of simple sugars, breaking them down into carbon dioxide, alcohol (ethanol, specifically), flavor molecules, and energy. The process is referred to as fermentation.
Janice Lawandi
Dec 15, 2015