My first partial mash brew will happen tomorrow. One question - After I put the grains in the grain bag, how do you seal it? Just tie a knot at the top?
Yup! Although...I skipped partial mash style brewing, went right from extract w/steeping grains straight to AG. I guess im confused on why are you using a bag with a partial mash?
If you are using a bag and steeping them...thinking that is a mash....use caution. A mash requires a "specific" water:grain ratio to achieve proper pH and consistency, amoung other things.
But like I said, I never did a partial mash, but dont see how a grain bag fits into it that well?