Wine Yeast - Wyeast

Wine Yeast - Wyeast

Activator packages include a sterile liquid nutrient pouch that, when “smackedâ€, release their contents into the yeast slurry and “activate†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.

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