The S-23 strain of lager yeast is one of the few high-quality dried lager yeasts in the world. It originated in Germany and is used by numerous European breweries. This lager yeast produces exquisitely smooth beers with a clean flavor profile. This versatile yeast not only creates world-class styles such as German Lagers, Bocks and Pilsners but it can also be used at warmer temperatures for producing very smooth ales.Fermentation Temperature: 9C – 15C (48F-59F), ideally 12C (53F).