An extreme yeast for extreme fermentation! This strain from Wyeast has a high alcohol tolerance of up to 21%! This is a yeast that is often added after primary fermentation of beer to finish them off. It tends to be neutral, with low ester formation that leads to a very crisp and clean flavor profile. It has traditionally been used in the production of Eau de Vie, as well as other types of brandy and spirits such as grappa and cognac. A great, clean yeast for finishing off beers and for experimentation!