Having a discussion with someone regarding length of batch sparge times. Palmer swears by 15min rests after sparging and my buddy is swearing by the same. I usually just sparge, stir, vorlauf and drain w/in 0-5min. He's thinking by letting the sparge water sit in the grains longer we will get better effeciency but I coulda swore I remember reading a good thread on here about how someone experimented with these times and concluded that you could let it sit for up to 30min and the effeciency wouldnt increase as long your initial mash had full conversion of the grains. Can anyone confirm this, or if nothing else point me in the direction of that thread? I've tried searching and was unable to locate it.
Thanks
Thanks