A 90 minute boil will have no effect on clarity in my experience. Nor getting a better rolling boil. The only AG I've done so far are 2 brews of East Kent Goldings single hop pale ale, and 3 brews of Northern Brown. I use a 90 minute boil. The NB brews have all come out quite a bit clearer than the EKG brews which were like soup! The only real difference was the quantity of hops used - think it was about 4oz for the EKG and only 1 oz for the NB. Different hops of course. So could it be hop dust?
I also noticed the NB brews tended to clog up the tap filter on my boiler while the EKG brews didn't at all. So I'm guessing there was a bit better hot break with the NB brews, though why I can't imagine.
I also noticed the NB brews tended to clog up the tap filter on my boiler while the EKG brews didn't at all. So I'm guessing there was a bit better hot break with the NB brews, though why I can't imagine.