Indian_villager
Well-Known Member
I've been following the advice out of the following post and it has made whirlfloc a lot more consistent for me. The pH measured at room temperature should be between 5.0 and 5.2 for whirlfloc to be effective.
https://www.homebrewtalk.com/threads/ideal-pre-and-post-boil-ph.669433/post-8662277
https://www.homebrewtalk.com/threads/ideal-pre-and-post-boil-ph.669433/post-8662277