I use a counterflow chiller so it would be a little different than what I do. The last 20 min. of the boil I recirculate thru my counter flow and into one of these bags. I set it up like several other do with the PVC coupler. I use one of these bags instead of the paint strainer bag. I have found the paint strainer bags are to coarse. These bags will filter out the hot and cold break along with the hops.