E.J. Wren Homebrewer, Inc.

Red Star Pasteur Champagne (Davis 522), a strain of Saccharomyces cerevisiae, has been derived from the collection of the University of California. This strain has been widely used in the U.S. since 1963. It is a strong fermenter with good ethanol tolerance, and will readily ferment grape musts and fruit juices to dryness. This strain also has good tolerance to free sulfur dioxide. This strain is recommended for full bodied reds and whites. It is not recommended for grapes that have been dusted with sulfur, because of a tendency to produce hydrogen sulfide in the presence of higher concentrations of sulfur compounds. Pasteur Champagne is noted for low volatile acidity, good flavor complexity, and intense color. It is also commonly used in producing soda.

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