Anyway, after reading several posts on water profiles for this beer I’ve come up with this (using RO water as a base so just ignore the “existing water profile” listed):
I can attest to Tasty’s water profile making a PHENOMENAL IPA. I have been drinking my house IPA using his water profile for the first time and man can I taste the difference. I urge you to try it!
EDIT: AFAIK this is profile Randy Mosher uses as well.
I’m pretty sure Greg Noonan wrote that he used 700 ppm sulfates for his IPA. I’ll check the book when I get home.
I think 400 ppm isn’t too much. I REALLY enjoy the minerally, tight bitterness in my IPA at this level. I thought about experimenting with even higher levels.