First of all, I didn't really plan to make a beer with IBU above 100... I popped the hops into the calculator and it came out about 85. So, after the brewing the beer I was going over the printed out ...
My latest batch of IPA has come out really unpleasantly bitter, it was only supposed to be about 45 IBUs, using a combination of Northdown, Target and Bobek for bittering (60 minutes) and some more ...
What is First Wort Hopping (FWH) and how best can it be replicated in extract brewing?