Snafu
Well-Known Member
I'm not sure how accurate this is, but the guy at my LHBS that sold me the de-gasser to aerate my wort said that its used mainly to remove O2 from wine by starting from the bottom of the container and slowly raising the stir paddles to the (near) top. If I wanted to add O2, start at the top and pull O2 down into the wort by slowly lowering the paddles.