I was keeping my kefir water in a plastic Tupperware type of liquid container for juice or whatever after it was done fermenting in the glass jar. What should we do with the Kefir water after it's done fermenting in order to drink over the next few days? I don't like to refridgerate it. Will it lose it's carbonation if I use the Tupperware container I usually use? It has a screw on lid with an pop-top opening for the liquid to come out on it.