BarberSurgeon
Well-Known Member
I'll be brewing up my first AG BIAB tomorrow. I'm making a two-gallon batch with 4.2 pounds of grain. Beer Smith suggests I use 6.56 qts of water for the mash then sparge with 1.37 qts (I may not sparge). I understand that boil-off will vary with temperature, climate, and altitude, but how much can I expect the grains to absorb? There seem to be so many factors to consider just to get down to 2 gallons. Please help!