Trying to pass fake currency is a crime . A felony at that . Sure it was stupid to try a million dollar bill , but what if it had been a hundred dollar bill ? Is that any better ? <| sep |> I calculate my water needs using Brew in a Bag BIAB Calculator , then heat the full volume to strike temp . Having already used brewing software Brewer ' s Friend to calculate my mash thickness at ~ 1 . 8 qtslb , I draw out the excess water usually 12 gals , place it in a spare brewing bucket and cover it with a lid . After my mash is finished , I pull the bag from the kettle , and dunk sparge it in the reserved water in the bucket . Keeping the lid on the bucket traps a good deal of the water ' s heat , so the sparge water usually only drops around 20 F . I use a large strainer over the bucket to squeeze the snot out of the grain bag . I get 95 % extraction efficiency with this method .