Interesting results. Let me be more clear about my experience. I was using Purell (62% ethanol or thereabouts) as fuel in a Trangia stove, not in the open, and it was well shielded from the wind by a homemade wind shield I was trying out. I didn't put a stop watch on the trial, but I had nice hot tea in roughly four minutes; certainly soon enough to be practical. A different stove or an open pan might not provide the same experience.