At 50 proof, Samuel Adams Utopias is the world's most potent beer. It's also one of the rarest: Only 8,500 bottles were brewed this year according to a method that's taken almost a decade to develop. Aged in bourbon, scotch, port, and cognac barrels, Utopias has a lush, honey-tinged flavor and tastes as much like those liquors as it does of hops and malt. At $100 a bottle, it's also the only beer that can be justly served in a snifter. For stores and restaurants: 617-368-5000; www.samadams.com.