Great Basin's Mayan Maybe? beer has been a fast seller, the company's brewmaster says. Jazz Aldrich/Great Basin Brewing Company hide caption

itoggle caption Jazz Aldrich/Great Basin Brewing Company

Some 49,000 people came to Denver for the 2012 Great American Beer Festival, which featured a record 2,700 beers in the festival hall. Bill Chappell/NPR hide caption

itoggle caption Bill Chappell/NPR

Kiuchi Brewery vice president Youichi Kiuchi holds a bottle of his company's Hitachino Nest beer. To make beer, the brewery is using equipment that once was used for sake. Lucy Craft/NPR hide caption

itoggle caption Lucy Craft/NPR

President Barack Obama enjoys a beer at The Pump House in Cedar Falls, Iowa, this month, but would you like to know what's in his homebrew? There's a petition for that. Carolyn Kaster/AP hide caption

itoggle caption Carolyn Kaster/AP

A row of taps highlights specialty and imported beers at Brouwerij Lane, in Brooklyn, New York. Craft brewers have found a way to thrive, even as the U.S. economy struggles. Bill Chappell/NPR hide caption

itoggle caption Bill Chappell/NPR

This farmer, pouring maple sap into his pail near Wilmington, Vt., in 1954, may have turned the dregs of the season's sap into beer. Robert F. Sisson/National Geographic/Getty Images hide caption

itoggle caption Robert F. Sisson/National Geographic/Getty Images