there was a contest on the internet for fastest time to get cooking charcoal to the right cooking temp.
contest folks failed to carefully consider all boundary conditions and failed to set a max temp.
cal tech students won, using liquid oxygen. it achieve prime cooking temp in seomthing like 1.5 seconds. it did then proceed to completely melt the charcoal grill into a small puddle.
they did win but rules were clarified in the future. :D