Via James Fallows, a profile of Dogfish Head Brewery (and other extreme beers):
Dogfish makes some very fine beers, [Brooklyn Brewery brewmaster Garrett] Oliver says. But its reputation has been built on ales like its 120 Minute I.P.A., one of the strongest beers of its kind in the world. I.P.A. stands for India pale ale, an especially hoppy British style first made in the eighteenth century for the long sea voyage to the subcontinent. (Hops are a natural preservative as well as a flavoring.) A typical I.P.A. has six per cent alcohol and forty I.B.U.s—brewers’ parlance for international bittering units. [Dogfish brewmaster Sam] Calagione’s version has eighteen per cent alcohol and a hundred and twenty I.B.U.s. It’s brewed for two hours, with continuous infusions of hops, then fermented with still more hops. “I don’t find it pleasant to drink,” Oliver says. “I find it unbalanced and shrieking.”
Others find it thrilling. “When you’re trying to create new brewing techniques and beer styles, you have to have a certain recklessness,” Jim Koch, whose Boston Beer Company brews Samuel Adams, and who coined the term “extreme beer,” told me. “Sam has that. He’s fearless, but he’s also got a good palate. He doesn’t put stuff into beer that doesn’t deserve to be there.”
Long read from the New Yorker, with the magazine's usual wordiness, but interesting. And it's making me thirsty.