DO NOT TEST INDOORS. PERIOD!

I’ve hade a few tests go awry in the garage and was fortunate enough to quickly extinguish the flame.
Do your tests in a safe outdoor spot, free of leaf litter or anything burnable.
Also have a safe way to snuff out the flames. Gloves are a good idea.

Alky stoves are safe. But they can get away from you if not experienced . Be safe!