so I want to start brewing all grain on a very small scale, to experiment with making recipe's from scratch. (think 12 pk) I was wondering what the concerns associated with small scale brewing where, I know there is some concern over the head space to volume ratio in the fermenter, what problems does this create and why.
I was thinking of making my small system a steam infusion system out of one of the portable coolers. what sizes should I consider and why. thanks