Originally Posted by djfriesen
Ah, OK. Equal runnings is not something I have run across before. Is it pretty standard AG practice? Or one of those "personal preference" things that does little to affect the final process?
It's actually fairly well accepted as the best way to do it. It will guarantee you get the most sugar out of the grain with your intended water bill without worrying about pushing PH up and extracting tannins. I could argue that if I mashed really thick, then added a LOT of sparge water, that I could get a better rinse of the grain, because that water would be hotter and therefore it would be more able to dissolve sugars. I'd be right. BUT, I'd be lowering the grain's ability to buffer the solution and I'd worry about astringency from tannins. Soooo, half and half give or minus a gallon is the way to go. Still, it's much more important that you be consistent than worry about this crap.