What do you do about the air in the keg after pumping the wort from the Grainfather? If you leave it in there do you notice any oxidation? I've been fermenting in kegs for a while now and will not go back to glass. If I could eliminate another piece of equipment (the chiller) from my cleaning...
I just brewed on my GrainFather for the first time. My water calculations are way off. Is the GrainFather's calculator on their website for target fermenter volume or what?