Bock (German for goat) is likely a descendant of some of the oldest German lagers in the world. It evolved in the Franconia region of Germany, just north of modern day Bavaria. Bock has one of the largest ranges of the German beers and can be light (like a helles bock or maibock) to very dark; it can also be moderate to very strong in alcohol. A traditional bock is generally not hoppy, but more malt forward and brewed to at least a starting gravity of 1.064. We sat down with Larry Leinhart, owner and brewer at Prost Brewing Co. in Denver, Colorado to see how he brews his traditional bock. Prost Brewing Co. is a brewery that has made a name for itself as a lager brewery. Their brewhouse is a classic copper German two-vessel system built in 1963. This recipe was originally featured in the November/December 2011 issue of Zymurgy.