[youtube]http://www.youtube.com/watch?v=4AQi9x_Ueho[/youtube]
M returned from Philly this weekend with a 15lb CO2 tank. We hooked it up to the regulator, hose (with ball lock), and “carbonator” cap that I got from Northern Brewer and it worked great. From construction to carbonation took about 10 minutes. Video is here.
The set up is basically the same as this one. I set the regulator to 40psi, but I’ll experiment with other settings.
The steps are this: take a 3/4 full bottle of chilled liquid, attach the ball-lock cap, evacuate the air, connect to the hose, apply pressure, shake like mad, drink.
In this case I carbonated water and pomegranate juice. It’s really tasty and quite cost effective ($.01 for the water, $.02 for the CO2, and $2.50 for 1/2 liter of Georgian pomegranate juice that I get across the street). We plan to experiment with other juices and kefir d’acqua that M makes.
Update: I used way too much pomegranate in my first experiment. Subsequently I tried it with just a couple of ounces of juice and it’s much better.