One of the main beer ingredients you will need for home beer brewing is yeast. It ferments the ingredients and provides flavor to the beer. E.C. Kraus has a broad selection of dried beer yeast to choose from, with different flavors for making an array of beer types. For instance, we have Vierka German beer yeast for lagers and Fermentis beer yeast for ale. Pick a type based on the kind of beer you are trying to create.