WLP830 German Lager Yeast This yeast is one of the most widely used lager yeasts in the world. Very malty and clean, great for all German lagers, pilsner, oktoberfest, and marzen. Characteristics Attenuation74-79% FlocculationMedium Optimum Ferment Temp.50-55°F (10-13°C) Alcohol ToleranceMedium