Home brewing, which was rendered illegal by Prohibition and not legalized again until 1979, is enjoying a resurgence. The American Homebrewers Association, based in Boulder, Colo., had just 11,724 members in 2006; that has since more than doubled, to 26,000. This increased interest, in turn, has fostered a mini-boom in brewing equipment, according to Gary Glass, who is the director of the association. Home-brew supply shops reported a growth of 16 percent in gross revenue, according to 2009 numbers, Mr. Glass said, referring to the change from the prior year. The numbers for 2010 are not yet available, he added, but he anticipates double-digit growth once again.

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