Beer Purity Law (Reinheitsgebot)

The Beer Purity Law, known as Reinheitsgebot, originated in Germany in 1516 to regulate beer quality and protect consumers. It initially allowed only three ingredients in beer: water, barley, and hops. Yeast wasn't included until later because its role in fermentation was not yet understood. This law aimed to ensure that beer was brewed without harmful additives, maintaining a standard of purity and taste. While modern practices have evolved, the Reinheitsgebot remains a symbol of brewing tradition and craftsmanship in Germany, emphasizing quality and heritage in beer production.