It's good to know a litle about the German wheat beer on tap at Oktoberfest. There are numerous types including traditional and unfiltered Hefeweizen, Kristallweizen (crystal wheat), Dunkelweizen (dark wheat) and Weizenstarkbier (strong wheat beer). Weissbier is also quite popular. As an extra tip, the alcohol content for dark beer is higher so be careful when chugging one, two or three too fast. It will catch-up with you.