ISI soda siphons?

kecsJuly 24, 2005

I'm stumped. I've had a soda siphon for about 20 years now, which has gone unused because DH and I can't find the right CO2 cartridges. DH says cartridges have to be threaded, so the cartridges can be screwed into the intake valve. But the ISI cartridges I bought at Williams Sonoma are unthreaded--sales clerks there demonstrated without actually doing, explaining that one jammed the cartridge in, which released the C02 into the water, producing the desired seltzer.

Does anyone know if this is true or not?



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Soda cartridges are not threaded. There is a capsule that fits over the cartridge and that in turn threads against the bottle, pushing the cartridge down, breaking its seal, and charging the bottle.

They are normal C02 cartridges, unthreaded. They haven't changed in decades.

    Bookmark   July 25, 2005 at 5:59PM
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