Wyeast Laboratories in Hood River, Oregon offers homebrewers, winemakers, mead & cider makers an extensive lineup of fresh, premium liquid yeast strains with their exclusive Activator pack that includes yeast nutrient, so you can smack the pack and have it incubate (swell) before using. This is a huge advantage when ordering yeast online, as you can never be sure if too hot or too cold temperatures during shipping have killed your yeast. This visual swelling of the Activator pack confirms you have active and ready to pitch yeast. A single pack will ferment a 5-gallon batch of homebrew with up to 1.065 original gravity.
