@brad Ray said doesn't matter. The gas goes through.
I have a co2 tank with a regulator on it with some connectors that let me carbonate beverages and also can do the trash bag thing.
One of the most delicious carbonated things I make is half concord grape juice half distilled water, put it in a threaded bottle, get it cold and connect it to the tank and shake it for a minute or two.
It's so good everyone should try this. That grape juice is so dense and thick in flavor, cutting it with water works great and the co2 makes it taste ridiculous good.