Planning on brewing my 17th batch this saturday. Now that i can keg I would like to get some beer in the pipeline. Was wondering if anyone has brewed a quick extract while they were mashing in their AG.. Just thinking how I could possibly brew up 20 gallons in the same amount of time. I'm brewing 10 gallons on my 3 tier so I figure I could easily throw some an extract batch in my BK while i'm working on my AG. THought's??? i know it's kinda stepping back but there's plenty of guys rocking out extracts and PM. I stepped up to allgrain on my 4th batch so it's been awhile. Has anyone done this? and if so any pointers?