White Labs WLN1000 Yeast Nutrient
Give your beer, mead, wine, or yeast culture an energy boost! Use 1/2 teaspoon per 5 gallons of beer. Store at 40-70F. Add to boil in last 5 minutes or boil separately for 5 min. White Labs Nutrient is comprised mostly of amino acids, which are building blocks for proteins. It doesn't speed up a fermentation much, but it does make for healthier yeast. It can be used with Servomyces.
Source: White Labs
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