Crooked Tail Stout Beer Details ABV: 7.7% IBU: 37 OG: 1.070 FG: 1.012 Color: 74 Grains: Chocolate Malt, Oats, Roasted Barley Yeast: London Ale Hops: Cluster, Target A medium bodied bittersweet chocolate stout brewed with copious amounts of chocolate malt and roasted barley. A medium bodied bittersweet chocolate stout brewed with copious amounts of chocolate malt and roasted barley.