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Wyeast Liquid Yeast - Regular Strains
Wyeast Premium Strains - Direct Pitch Activator™
FREE Freezer Pack! We include a Freezer Pack with every yeast order at no cost to you so that your yeast arrives in optimum brew ready condition.
Activator™ packages are designed for direct inoculation of 5 gallons of standard* wort. Activator™ packages contain live yeast cells in a liquid slurry. This yeast slurry is packaged in an optimum condition for storage, while maintaining the ability for rapid and complete fermentation.
Activator™ packages include a sterile liquid nutrient pouch that, when “smacked”, releases its contents into the yeast slurry and “activates” the package. The available nutrients initiate the culture’s metabolism which in turn generates CO2 and causes swelling of the package. This process will reduce lag times by preparing the yeast for a healthy fermentation prior to inoculation. Activation also serves as a viability test of the culture. Expansion of the package is an indicator of healthy (viable and vital) yeast. Although beneficial, cultures do not need to be activated prior to inoculation. More usage info at the bottom of this page.