Today I’m talking to Michael Stein, the author of a recent piece from our Source Material series, “A Lager Darkly — In Search of Culmbacher, One of America’s Great, Extinct Beers,” published on March 17, 2021. In his story, Michael explores the largely forgotten Culmbacher beer, originally from what is now the German state of Bavaria, but which grew in popularity in the United States in the 19th century, apparently changing substantially in the New World.