I am thinking I am going to make the jump to all grain very shortly. I would like to do BIAB first. With that being said, I only have a 32 quart kettle, and I've been reading this isn't sufficient enough, due to the lack of space for sufficient water volume and the grain bill for a 5 gallon batch. So I was wondering, can I bring the water up to temp for the mash in my kettle, then use a lauter tun or just an igloo cooler for that matter for the mash, then transfer back to my kettle and do the boil from there?? Obviously keeping the tempurature might be more tricky. I have done some searching around, and I can't find where this method is addressed, if at all. Has anyone tried this or do you have any suggestions? I might just pick up a bigger pot to eliminate this issue anyways, just thought I might put this out there.