When heading down to our cellar store ... what do we find? The hearty spicy taste that you would expect from a cask-conditioned German Vollbier. Simply authentically earthy. Originally Kellerbier (literally "cellar beer"), also known as Zwickelbier from the German for sampling cock, ("Zwickel" in German), was in fact only the sample that master brewers took from the cask before fermentation to check the quality and taste of the fermentation brew. Today KELLERBIER is one of OETTINGER's popular speciality beers. 0% BORING. 100% foam beard