OVER 4 MONTHS OLD- STARTER RECOMMENDED! NO GUARANTEE OF VIABILITY AND POUCH MAY BE SWOLLEN. Used by many German breweries to produce rich, full- bodied, malty beers. Flocculation- medium; apparent attenuation- 73- 77% (Best Fermentation temp. 48- 58 °F). 125 ml. Activator pouch with 100 billion yeast cells.