Dave Breeden ) wrote:

>...have you removed all the CO2? That will falsely raise your TA values.

Dave,

1) Will adsorbed CO2 distort the pH value as well, or just the TA?

2) Can you (or anyone else) suggest a few methods that home winemakers might
use for this procedure.

I saw a few methods described at
http://groups.google.com/groups?q=re...rect.ca&rnum=4.

Not everyone has a vacuum pump handy, but the "wine whip" sounds promising.
Still, we only need to degas the sample that we are using to test the TA/pH,
right?

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?