A completely natural primary breweramprsquos yeast saccharomyces cerevisiae that provides a source of amino acids bcomplex vitamins and mineralssource most breweramprsquos yeasts are derived from the fermentation of beer such fermentation involves using grain such as rice or wheat malt active yeast and the dried flowers of hops the addition of hops to the fermentation gives a characteristic flavor to beer but imparts a bitter taste to the dried breweramprsquos yeast obtained as a byproduct