“O’zapft is!” The cry of happy beer drinkers at the start of the of the Munich Oktoberfest, which in German means “The keg is tapped!” Rahr’s Oktoberfest Celebration Lager is a traditional Marzen-style Oktoberfest lager – dark amber in color, super smooth, medium body with a sweet malty finish. True to tradition, this is a classic Oktoberfest Lager.