Black Tiger is an oatmeal stout with nice body and a slight chocolate aroma. Overall rating is a 7/10 for me. All Grain Brew Info BJCP Style: 16B.Oatmeal Stout Est Original Gravity: 1.060 Est Final Gravity: 1.015 Alcohol by volume: 5.82% International Bittering Units: 34.87 Colour: 38.59 Estimated efficiency: 70% Secondary ferment: No Time to awesome drinkability: 5 Weeks Batch Size Fermenter: 19 l Grain Bill size:  6.04Kg Ideal Carbonation