If you do a "baño maria", hot water bath...
Just preheat the water, and turn off the fire, before exposing it to fuel/naphta.
Hot water will not cause an ignition...
Carefull with lighting equipment, phones, cigarettes...
"...after five seconds I was no longer a marxist, no longer a materialist, no longer a rationalist.
It killed those things, it cauterized them..."Terrence McKenna