Wyeast
Wyeast Laboratories in Hood River, Oregon, USA was founded in 1986 and was one of the first producers of brewers yeast.
The Activator™ packages include a sterile liquid nutrient pouch that, when “smacked”, releases its contents into the yeast slurry and “activates” the package.
To be kept in refrigerator. Shelf life 6 months from date of manufacture. We sell yeast older than 5 months to reduced price because it may require making a
yeast starter.