You do not have to cool it near that much! A few splashes till it quits sizzling but still quite quickly self drys will make it cool enough that a new dose of OA will not start to fume off. Probably around 200 F. Once you power it up the following boil off will take only half the time to complete.Yes it does take too long. I have 8 hives. I think if I had more I would have cut loose with the cash and gotten a vaporizer.