I have, but not in a bottle or other closed container. For family picnics we used to mix up root beer in a 5 gallon cooler, then drop in a chunk of dry ice. It would stay acceptably carbonated for an hour or two but eventually go flat.
I think the pressure would be too hard to control in a bottle. Maybe in a keg with a bleeder valve, but you'd still need a tank to push it out so it would be kind of pointless.
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Secondary 1: LW Pale Ale
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