Brewer’s grains appear after the filtration of beer wort during the brewing process. These are natural, ecologically clean, high-protein products. Biogas, ecological fertilizers and electric energy can be produced of them. They can be used in making bread, pasta and sausage. But most often brewer’s grains are used in agriculture as a high-quality animal feed, which is an absolutely natural, ecologically pure and bioactive product without chemical impurities.