I have a gallon jug of distilled water to use with my passover humidifier which I keep on the bureau in my bedroom. Someone told me that he keeps his refrigerated to avoid anything from possibly "growing" in there. Is this a valid concern?? I generally breathe about a gallon or slightly more per month so the jug may sit for 3 - 3.5 weeks at room temperature.
I would think that refrigerating it would cause breathing discomfort when refilling and using the humidifier in a short period of time...
What do you think?

