I have a SodaStream for making seltzer. I also use it to put a 'float' of CO2 in bottles that I want to last longer. Simply, I put a bottle under the SodaStrea

I have a SodaStream for making seltzer. I also use it to put a 'float' of CO2 in bottles that I want to last longer. Simply, I put a bottle under the SodaStream nozzle and give a few puffs of CO2 to be confident that it's displaced most of the air. I do this with normal drinking wine sometimes, but more often things like vermouth that I don't open daily.