Now I'm confused??? I thought the conversion process stopped when I drained the wort off the grain bed and into my BK. Are you saying that even the wort in the BK is still converting until I start boiling?
I was under the impression that the mash did the conversion, and then I drained the wort off, and I just added the sparge water to rinse any residual sugars off the grains that were missed the first time around and that all the conversion happens in the cooler.
Am I misreading what you are saying? Or am I just way off base on how this all works?
The mash remains at a temperature conducive to conversion. Adding hot water to bring the mash up to 168 degrees, stops the conversion process. As previously mentioned, it's not a necessary step with highly modified malts that we can get now.