Red Star Dry Active Distiller's Yeast is a yeast product that has been specially selected for high alcohol production, with a high alcohol tolerance. This yeast will produce maximum alcohol yields when fermented under controlled fermentation temperatures below 90F. It is used at a rate of .125-.25 teaspoons per gallon of wort, and can be rehydrated first in 95F water. This yeast is not normally used in making beer or wine.