BrewDog's Mashtag 2015 represents a rare moment when a brewery handed creative control to its community. Every element—from style and malt to hops and special ingredients—was democratically voted on by BrewDog's fanbase. The result is a bold black barley wine at 10% ABV, brewed with American hops and a burnt toast malt foundation.

Pour reveals a jet-black body beneath a rich, coffee-hued head. The nose leads with roasted grain, peanuts and coffee. Palate delivers robust dark malt, molasses, pine resin and subtle chocolate, layered with vanilla and liquorice notes. The finish is warm and dry, with lingering bitterness and a boozy warmth that befits the style.