Fresno, Calif.—Gusmer Enterprises announced it had reached an exclusive distribution agreement with Renaissance Yeast for the company’s full line of specialty hydrogen sulfide-preventing wine and cider yeasts in the U.S. and Canadian markets. These yeasts were discovered by Dr. Linda Bisson at the University of California, Davis, and during the last five years Renaissance researchers, working under an exclusive license from the University of California, have developed classically bred commercial yeast strains that are unable to form H2S during fermentation. In addition, Renaissance also offers a certified organic yeast strain to support organic wine growers who are unable to remediate hydrogen sulfide contamination through traditional and approved organic winemaking methods.