Reuther Bier can only be produced in the municipality of Reuth bei Erbendorf in Bavaria. The beer is produced by the Schloß brewery, and it comes in four main styles: Lagerbier, Schloß-Pils, Weißbier, and Spezial.
Although these beers differ in their appearance, alcoholic strength, and flavor, they have to be made with Artesia mineral water, a spring which is owned by the brewery, and regionally grown hops and malt. They also must be brewed following the Bavarian Beer Purity Law that dates from 1516.