Would the following procedure work? Put the sample in an Erlenmeyer flask
or
small wine bottle, and seal it with a rubber stopper. Shake the bottle
gently. Remove the stopper slowly. Seems like this would get rid of most
of
the CO2 without any special equipment. Comments?



That's about how I do it, but just use the fat of my hand to seal the flask
and shake it "not-so-gently".

After several times (no pressure builds) it gets pretty well degassed.

clyde