There seems to be contention about storing in fridge, food storage is supposed to be at 36-42`, this may have degenerative effect on VG,PG, and nicotine. I don't think anyone has come up with a common thought about it yet. So far though dry and cool is agreed, I have my mixes etc in a hall closet, stays about 60`-65` and dark and dry, so mine should be ok too. There should be more input from manufacturers, but so far cool dry, and out of sunlight is the only directive.