would it make co2 for a longer period of time?? i dont have any 2 liter soda bottle and i think the milk jug is leaking and its time to refill anyway.... if i were to go out and buy a soda, what could i put it in (so i can use the bottle tonight)? and what is your best recipe?? i just do like 2 cups of sugar and 2 spoons of yeast...