IBU Additions with BIAB
Post #1 made 7 years ago
Hello all, I have a question perhaps you folks can help me with . I am brewing a beer that after calculating the grain absorption i will start with 8.5 gallons . I lose 2 gallons per hour to boil off and want to end the boil with 6.5 gallons of which i will transfer 5.5 to my fermenter.So boiling 60 minutes would give me the 6.5 gallons in theory. I want the finished beer to have around 20 /25 IBU bitterness so how can i calculated how much of a given AA unit hops to add at the beginning of my 60 minute boil to end with the 20 IBU at 605 gallons? Is it as simple as using the 6.5 gallons as the basis for my hop edition? Or am i missing something
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