I don't have the facilities to do a 23l AG brew but I'm on the verge of running out of beer after doing several 10l batches. It wouldn't be feasible for me to invest in larger equipment at this point. However, I'm sure I've read on here that Myqul does a super concentrate brewing technique, which I would appreciate a breakdown of the method. I think I understand the principle...use the quantities of grain and hops that you would for a full size batch but only use the quantity of water that suits your equipment...then top up in the FV after the boil. If Myqul or anyone else who uses this method could point me in the right direction, I would be grateful.