sulphites Saccharomyces cerevisiae other additives nothing added very same type of yeast. Wine Folly: What you need to know about wine additives Saccharomyces cerevisiae susceptible to discoloration Saccharomyces cerevisiae Saccharomyces cerevisiae little to no additives Puckette http://winefolly.com/review/wine-additives/ very same type of yeast. Saccharomyces cerevisiae