You drank all the Oktoberfest before we even had a chance to take off our Dirndls and Lederhosen. We quickly brewed another Märzen, with some minor changes: we substituted the Munich Malt with Vienna malt and added some darker crystal malts. It still has the same refreshing, malty flavor you loved – think Amber.
Märzen, is a style that is identical to historical Vienna lagers, with the exception that it is probably brewed somewhere other than Vienna. In Germany, legally a beer can only be called Oktoberfest beer if it is brewed in Munich and served at Oktoberfest. Yes, that means that virtually any style beer can be called Oktoberfest as long as it’s brewed in Munich and served at Oktoberfest. Thus, Märzen became synonymous with Oktoberfest, and as to not confuse us Americans (too late), German brewers labeled Märzen beers to be shipped to America as ‘Oktoberfest,’ since we don’t know what the hell a Märzen is.
For more confusing info, just google: what the hell is an oktoberfest vienna marzen fest bier Dortmund.