Aquela que matou o padre
Substituted Pale 2 Row for Stout Malt OG - 1.092, FG - 1.034
Imperial Darkness Yeast
Mash twice, using half of the grain each time. Boil the beer as long as possible. Marcus says he never boils an imperial stout for less than 6 hours. I might just boil for as long as it takes me to complete the second mash (1 hour). I think this will be ~3 hours total, which is a lot of propane. To each mash, add 8 g Calcium Carbonate, 2 grams calcium Chloride, and 1 gram Gypsum.
https://blackisbeautiful.beer/ Converting recipe for 5 gallon system