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

President Barack Obama gets a beer and a pork chop as he visits the Iowa State Fair in Des Moines. Earlier, the president gave a man at a coffee shop a bottle of the White House's home brew. Jim Watson/AFP/Getty Images hide caption

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Craft brewers are reaching markets far from their home breweries. In a Washington, D.C., store, beers from California, Colorado, Louisiana, Vermont, and elsewhere are for sale. Bill Chappell/NPR hide caption

itoggle caption Bill Chappell/NPR

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

Actor Jon Hamm in a scene from AMC's Mad Men. The show is set in the 1960s — but today, many companies provide their employees with ready access to alcohol. Ron Jaffe/AMC/AP hide caption

itoggle caption Ron Jaffe/AMC/AP

Quidi Vidi's lager is brewed with 25,000-year-old water harvested from Newfoundland's icebergs. Courtesy of Quidi Vidi hide caption

itoggle caption Courtesy of Quidi Vidi

Prime Minister David Cameron calls binge drinking "one of the scandals of our society." Here, a man drinks a pint of beer through a makeshift "Vuvuzela of Ale" in London, in a file photo from 2010. Leon Neal/AFP/Getty Images hide caption

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When they work well, beer and cheese pairings offer both harmony and contrast, says Garrett Oliver, editor of The Oxford Companion to Beer. See a list of pairings below. Claire O'Neill /NPR hide caption

itoggle caption Claire O'Neill /NPR

Cellarman Cooper Reid packs cases of beer at the Ipswich Ale Brewery in July. New rules put out by the state's alcohol commission require "farmer-brewers" like Ipswich to grow 50 percent of their own grains and hops, or get it from domestic farms. Boston Globe/Boston Globe via Getty Images hide caption

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