煅烧

煅烧	duàn shāo	to calcine (purify by heating)
煅	duàn	to calcine / variant of 锻
烧	shāo	to burn / to cook / to stew / to bake / to roast / to heat / to boil (tea, water etc) / fever / to run a temperature / (coll.) to let things go to one's head