I just bought a brand new quart of Sidewinder 20% Race Blend at my local hobby shop during the weekend. It hasn't even been opened yet and moisture droplets are forming at the top. Is there supposed to be moisture even though it hasn't been opened? Its still completely sealed.

Repost courtesy of "Fuelman".

"Glow fuel has a nearly indefinate shelf life when stored properly. That being said, the best way to store glow fuel is to keep it in a tightly capped container (opne it came in. When I say tightly capped, capped so that when you squeeze the bottle air does not escape when you listen close to the cap. If you tighten it too much, the threads will strip and then it will not seal as well. For storage, out of sunlight is best. The old myths that I keep hearing are that the little droplets that condense in the bottle on hot days, is water; NOT TRUE! Water can not evaporate from methanol, period, only methanol can evaporate out of water. The next one is that nitro will seep out and moisture will seep into a plastic bottle, again FALSE. The molecules of everything in the fuel are too large to seep through HDPE plastic. Another one is it can't be on a cool cement floor, FALSE. Tempreture does not hurt glow fuel, if it gets too cold and has some castor oil in there, you may get a few "castor snowflakes" in the jug but a good shake or bringing it up to room tempreture will cure that.
Nothing wrong with metal cans, I don't like them because many of them will have rust in them straight from the factory and over time sitting around in garages in damp areas the seams will rust out. Besides that, metal cans cost about twice what HDPE does and it has to be passed on to the consumer-That's YOU....."