The Bavarian State Brewery Weihenstephan. Nearly one thousand years ago it was the monastery brewery of the Benedictine monks, then the Royal Bavarian State Brewery. Today, as a regulated enterprise of the Freestate of Bavaria, it is a company run according to the precepts of private business. As the oldest existing brewery in the world, the Weihenstephaner brewery occupies an exalted site atop Weihenstephan Hill in the Bavarian city of Freising, surrounded by the comparatively still very young Weihenstephan science centre of the Technical University of Munich. Yet it is precisely this unique combination of tradition and custom, proven knowledge, and modern science, which gives the brewery its incomparable identity and permits it to brew beers of the highest quality.. And, of course, we're more than a little proud of that.