Saccharomyces cerevisiae is a unicellular fungus. Yeast from S. cerevisiae is the widely used yeast species in bread and sourdoughs. It is used to produce several fermented beverages (cider, beer, 85s, and wine) and distilled beverages (brandy, sake, vodka, and whisky). S. cerevisiae has better tolerance for fermentation stresses than any other yeast species. Hence, it is a preferred starter culture for industrial fermentation.