Keeping Beer “Pure”: The 1516 Reinheitsgebot
… barley ( left ) and hops ( right ) are the acceptable ingredients in beer according to the Reinheitsgebot. Half a … a city in present-day Bavaria, limited the acceptable ingredients in beer to “barley, hops, and water.” At the time, a … the price of beer per Maß (a Bavarian liter) and to limit competition for cereal grains used to bake bread. A …