G Got Trub? Well-Known Member Joined Apr 16, 2007 Messages 1,538 Reaction score 12 Location Washington State Jul 29, 2007 #31 If you batch sparge you don't really need to use it. For fly sparging it would help prevent tannin extraction if you are trying to eek every last point of gravity from your grain.
If you batch sparge you don't really need to use it. For fly sparging it would help prevent tannin extraction if you are trying to eek every last point of gravity from your grain.