Elmo wrote:
On Sun, 04 Apr 2010 13:21:31 -0700, Jeff Liebermann wrote:

aggitation is a great way to trigger a rupture,
but will help disolved the gas.

The agitation works. My orange juice is now fully carbonated.

As for the explosion ... in all the home carbonation articles I could
find on the net (see below), not one discusses a rupture actually
occuring. http://www.truetex.com/carbonation.htm
http://jmillerid.com/wordpress/2010/...e-carbonation/
http://foo.net/~jmgray/carbonation/
http://www.kk.org/cooltools/archives/001818.php
http://www.instructables.com/id/DIY-...ays-For-Itsel/
http://mendax.org/2008/05/02/carbonating-water-at-home/
http://www.inventionsthatwork.com/carbonator.htm
http://groups.google.com/group/alt.h...e7cf7f24d463e5

I'm not brave enough to go over 150psi for a soda bottle, so, I'll
have to leave it to others to say exactly what overpressure causes an
explosion ... but I'd say, based on my one experience and my search,
that explosion rarely (if ever) occurs at the pressures needed for
home carbonation.


There's really no reason to go anywhere near 150 psi. 50 psi is more than you'll
ever need unless your just in a panic of a hurry. And there's no danger in
agitating it as long as you are not hitting the bottle with a sharp object. Just
shake the bottle. Even just shake the top back and forth to make crashing waves,
which increases surface area and CO2 absorbtion. Shaking the bottle decreases
the pressure, as the CO2 disolves into the water. It does not increase the
pressure because the pressure at the top is higher than the stabile pressure in
the CO2 in solution.


I agree that your upside-down suggestion is better from the
standpoint of C02 contact with the liquid (no need to shake) ... but
it's just so much harder to accomplish that the right-side up with
agitation method seems safe for most of us.

You could make a filler cap with a 5 micron air stone that reaches to the bottom
of the bottle. Or, you can shake the bottle, or just be more patient.