On April 23, 1516 the Ducal brothers Wilhelm IV and Ludwig X issued a decree referred to as the “Reinheitsgebot,” or “Purity Regulation.” This set an stop to the adulteration of beer. From then on, only barley (as well as malt made from it), hops and water may be used https://gregoryyehgh.activosblog.com/34684832/made-from-durable-an-overview