"Granit Bock is brewed according to the historic style "Stone Beer" (Stein Bier). Stone beer is a unique style that comes from the Baden-Wurttenberg & Franconia regions of Germany and the Kaerten region in Austria, it dates back to the Middle Ages. The Granit Bock is brewed in large granite open troughs. The granite stones are then heated to be white hot and added to the wort. This causes the sugars in the malt to caramelize around the stones and gives the beer lovely caramel and roasted flavors. It also gives the Granit Bock a unique smoked flavor. Hofstettner Granitbock-ICE-bock (11.5 ABV) is produced by freezing Hofstettner Granitbock, (7.3 ABV). Hofstettner Granitbock is stored for several weeks at temperatures below 32 degrees Fahrenheid and frozen."