Wyeast Saison Brett Blend – Seasonal Species: Saccharomyces cerevisiae var. diastaticus & Brettanomyces blend A blend of Saison yeast and Brettanomyces creates a dry and complex ale. Classic earthy and spicy farmhouse character meets tropical and stone fruit esters. Aging brings elevated Brett flavor. Expect high attenuation with this blend. This blend contains Wyeast yeast strains that have been classified as Saccharomyces cerevisiae var. diastaticus using rapid PCR analysis. These strains carry the STA1 gene, which is the “signature” gene of Saccharomyces cerevisiae var. diastaticus and will be found in all diastaticus strains.