Where Does Baker's Yeast Come From?

Where Does Baker's Yeast Come From?

Where Does Baker's Yeast Come From?

According to Bread World, baker's yeast comes from the same species as brewer's yeast (Saccharomyces cerevisiae) but a different strain. Because yeast multiplies so readily, the manufacturing process is simple.

A single yeast cell is chosen, separated from the rest of a healthy culture, and placed into a petri dish or test tube for cultivation. This dish or tube contains nutrients, often including sugar or molasses, which prompt growth. The yeast multiplies and is finally moved into a fermentation tank, where it multiplies over many generations until harvest. This results in pure yeast, ready to be separated from the culture and used in baking.