As nouns the difference between alum and baking
is that
alum is an astringent salt, usually occurring in the form of pale crystals, much used in the dyeing and tanning trade and in certain medicines, and now understood to be a double sulphate of potassium and aluminium (K
2SO
4.Al
2(SO
4)
3.24H
2O) while
baking is an action in which something is baked.
As verbs the difference between alum and baking
is that
alum is to steep in, or otherwise impregnate with, a solution of alum; to treat with alum while
baking is present participle of lang=en.
As an adjective baking is
intended for use in baking.