Widmer produced 286,000 barrels of beer in 2009 and Redhook 184,000 barrels. Adding Kona's production puts the company at 583,000 barrels, or more than 18 million gallons. Boston Beer Co., the country's largest craft brewer and maker of Sam Adams beers, brewed about 2 million barrels in 2009. Anheuser-Busch InBev, the largest brewer in the world, brewed about 200 times that much in 2007.