Wine Yeast at the Limits of Possible Diversity A couple months ago, I discussed some Australian Wine Research Institute (AWRI) research that appears to indicate that we may be approaching the limit of possible diversity in the Saccharomyces cerevisiae wine yeast strains. One of the questions raised in my mind by this research is, “Well, what else can we do?” If winemakers want wine yeast strains that have characteristics that are not currently found among the commercial wine yeast ...