Subject: How to best keep the carbonation in a bottle of coke

Conditions: an opened plastic bottle of coke, at room temperature, no
shaking of the bottle.  I contend that by squeezing an opened plastic 
bottle
of soda to the point that it seeks to return to its prevoius configuration
by drawing air back into the bottle, then capping it, that the carbonation
will remain in the soda better than it would if the bottle were not
squeezed.  My son disagrees.  He feels that the vacuum is just as likely to
draw the CO2 out of the soda, as it is to draw air into the bottle, or that
greater air pressure on the soda would prevent the CO2 from leaving
solution.

Can you help settle this?

Mike & Dan Flood

Re: How to best keep the carbonation in a bottle of coke