After dehydration, dry yeast cells are dormant which helps their shelf life but it isn't so great for fermentation. Rehydration helps revitalize those yeast cells. Think of the rehydration process as your yeast's morning coffee. This Homebrew Note will teach you how to get those yeast active and healthy for an optimal fermentation.
Calculating How Much Yeast to Pitch
It’s always a good idea to pitch an adequate number of yeast cells to provide a healthy fermentation. Doing so can be the difference between great or not-so-great beer. This Homebrew Note will show you how to calculate the number of cells you need.