Triple Bock

Samuel Adams's Triple Bock was an extreme, experimental beer produced by Samuel Adams, released in 1994, 1995, and 1997 only. It has a black, opaque color, no carbonation, and at 17.5% ABV was the strongest beer ever brewed when it was introduced. The taste has very little resemblance to ordinary beers. If anything, it is more like a port wine (but more bitter) in character – very thick, sweet and rich aroma and to be served at room temperature and slowly sipped. A fair amount of maple syrup was added in the brewing process, which is also evident in its taste.

Triple Bock was a "forerunner" of later extreme beers from Samuel Adams — Millennium (21% ABV released in 1999 only), and Utopias (24–26% ABV first released in 2002).