Originally Posted by bxtzd3
i tried to sift through all the posts, but i want a quick and simple hopefully. i have a 5 gallon pot can i do biab and just add top up to what ever i need? i was going to get a turkey fryer, aluminum pot with a 30qt pot.
In short, yes, you can do BIAB and top up to whatever you need. That's pretty much what I plan on doing for my next batch.
Doing BIAB in a smaller pot like that and topping up afterward is called partial or mini-mashing. Since you're not getting all the grain you need for a full 5 gallon batch, along with the mash water, in a 5 gallon pot, you'll need to backfill with some extract (hence why they call it a partial
But you can certainly do what you are thinking.
In fact, DeathBrewer wrote a great
sticky on the subject, in which he does this exact thing with a 5 gallon pot.http://www.homebrewtalk.com/f39/easy...ng-pics-75231/
If you want to go all grain BIAB, without backfilling with extract, you will need a larger pot and likely a turkey fryer as others have suggested.