This yeast needs to be bloomed in 105 degree water.
Red Star« Active Dry Yeast is a special culture of Saccharomyces cerevisiae. The moisture is removed in such a way that cell viability and leavening power are retained. This results in a granular form of yeast designed to be rehydrated before use.
Red Star« Active Dry Yeast can be used in all yeast-leavened goods with either straight or sponge doughs. It is normally applied in a ratio of 40% to 50% of compressed yeast weight requirements, depending on the sugar content and type of dough. Active dry yeast should be rehydrated with a minimum of 3.5 to 4.0 times its weight in water at 38-43║C. (100-110║F.).
Store unopened packages at room temperature in a dry location. Recommended shelf life for unopened packages is two years from date of manufacture. Once opened, I keep mine in the freezer