I am up to my 50th brew, and want to do a monster RIS on my friend’s 1/2bbl system. I was thinking of doing a 5-6 gallon BIAB to grow up a big slug of Nottingham for the RIS. I know typically you shouldn’t do a ‘hoppy’ starter, but would it be as simple as just adjusting the viability down in a yeast calculator? I would like to make a premium bitter or maybe a hoppy APA, and since I am using a dry pack of Notty, gravity of the starter shouldn’t be a problem. However I do worry about those hop oils coating yeast cell walls. I’m thinking I will be ok if I simply adjust the viability down and overpitch a bit into the RIS.
Also, on many beers, I chill and decant before pitching, so hop matter/trub wont be a concern for repitching the slurry from the starter beer.
So I guess technically the RIS will be 51.