Dark Tropics is a hop forward tropical stout 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 Level: 2g/ l My Rating: 7/10 Brew Number: 36 Ingredients Grains