Escarpment Premium Pilsner LIMITED EDITION yeast, EXPIRED

What do the dates mean?
Best Before (BB) according to the manufacturer

Premium Pils is a Czech-derived lager strain with high fermentation rate and clean flavours. While its use is not limited to Czech style beers, we do think that it shines in these styles. We recommend making a yeast starter prior to use with homebrew pouches of lager yeasts for best results.

Attenuation: 70-80%
Optimum Temp: 10-15°
Alcohol tolerance: Medium
Flocculation: Medium