After a quick search online it seems that it is, for non-biab brewers, a very inefficient use of hops, with on a small hop effect. It was mentioned in a couple of places that it may lower mash Ph.
With BIAB, however, the hops would not be lost with the lautering, which does not apply to BIAB if the hops are put outside the bag, maybe in a hop sock to keep things tidy.
Has anyone done it? Is it pointless/beneficial/harmful? What do we think?
