However, water is not only used for the brewing process in the Andechs Monastery brewery but also for cooling and cleaning. The Andechs Monastery brewery only uses water of drinking quality on principle.

Therefore, Quality Assurance at the Andechs Monastery brewery regularly tests the brewing water for bacterial and chemical-physical contaminants according to the German Drinking Water Regulation. The water quality can be optimised for the brewing process in accordance with the German purity law. Corresponding processes remove salts from the water, but no other substances are added.