Recipe RPB’s Imperial Oatmeal Stout RPB’s Imperial Oatmeal Stout (5 gallon/19 L, all-grain) OG = 1.088 FG = 1.032 IBU = 30 SRM = 70 ABV = 8% Ingredients 14.2 lbs. (6.4 kg) 2-row malt 2.1 lbs. You'll Also Like Recipe MEMBERS ONLY Mauldon's Black Adder Clone Mauldon’s Black Adder Clone (5 gallons/19 L, all-grain) OG = 1.055 FG = 1.014 IBU = 37 SRM = 32 ABV = 5.3% Ingredients 5 lb. 4 oz. (2.4 kg) Maris Otter pale malt Recipe MEMBERS ONLY Carolina Brewing Company's Groundhog Imperial Stout clone This Russian imperial stout is part of Carolina's rotating offerings. It pours a deep, dark color and features a roasted, malty profile.