5x Fermentis Saflager W34/70 Beer Yeast lager and pilsner ales 11.5g 10-15L 5x This is the most popular lager strain in the World!! Lager yeast from the Weihenstephaner Institute in Germany. Premium Lager and Pilsner Yeast. Flocculation: High. Attenuation: Medium. Temperature: 9-15C Use 1x 11.5g sachets in 10-15L. Use 2x 11.5g sachets in 20-30L