Kellerbier Kellerbier is an unfiltered, unpasteurized lager aged in a wooden cask.        Photo: © Bayerischen Brauerbund e.V      Classification:  Vollbier Type of Beer:  Lager Alcohol Content:  5-5.3% IBU:  34 Region:  The Franconia (Franken) region of Bavaria Well Known Brands St. Georgen Bräu, St. Michaelsberg Beer Characteristics Deep amber, sometimes reddish, in color. Slightly opaque. Very little effervescence resulting in very little head. Noticeable hops and malt tastes with a very dry finish. Serving Suggestions Kellerbier serves well as an aperitif, served before meals to stimulate the appetite.