ocr: yeast Yeast is a live fungus with hundreds of ditterent varieties. The yeast used in baking is a ditterent variety than that used in brewing, but the way they work is pasically the same. Yeast cells consume fermentable sugars creating carbon dioxide and alcohol. There are two predominant yeast types used in brewing; ale yeast and lager yeast. Ale yeast (saccharamyces cerevisi8e) gathers at the top of the wort as it ferments and is best used at temperatures of 60-80°. Lager yeast (saccharamyces uvarum/ gathers at the bottom of the wort and operates at temperatures of 35-55°. Wild strains of yea ...
