Thank you for the help. I was using a 24 oz beer can pot with the bottom painted black. I admittedly did not use a wind screen, I was using denatured alcohol, and I was on a concrete slab. The slab temperature was lower than the ambient. I plan to test it again. This time I will use HEET as a fuel, a ground insulator, and windscreen. I will let you know what happens.

Craig