The Riedenburger brewery is not only known for its incredibly delicious beer, it is also an example of ecological pioneering work in Germany. Since 1994, the "Riedenburger" has been the first Bavarian brewery on the market with a holistic ecological concept. The mixture of sustainable innovation and tradition in a family brewery, run by the third generation, makes it something very special. We have developed the "Riedenburger" cap exclusively for the Riedenburger brewery. Special features are: