I just compared trioxane and hexamine/esbit tabs in my esbit and tried to boil 2/3 of a canteen of water in 32 degree temps and neither got the water boiling (i didnt use a wind guard) any way the trioxane left less of a mess and got the water 37 degrees hotter in half the time! i burnt the whole tablet on both and the troixane burnt for 6 min. and the esbit for 11. either way, the trioxane chipped right off and the esbit... real pain! trioxane wins my vote! it even cleaned off some of the soot from the esbit!