Just a quick little suggestion that there be hot drinks in the game, like hot cider, tea, cocoa, coffee, milled wine, etc. Dwarfs could fill their mugs with them (whenever that happens), causing the mugs to go hot--at different rates, dependent on the material they were made out of--warming cold dwarfs' hands.
A dwarf on a break might get a hot drink just because her hands were cold. The drink itself would be secondary.
Dwarfs might have a favorite mug, not unlike a pet, but inanimate.
Some dwarfs might prefer the same beverage to be hot, while others like it cold (iced coffee), depending on their personality.
Hot dwarfs might press a cold beverage to their foreheads.
Wisps of steam might come off the hot mugs, while cold mugs might percipitate, moistening the hands holding them.
Dwarfs might become addicted to caffeinated products, needing them to get through their working day (I know I do!).
An overanxious dwarf could burn his mouth slightly, swallowing a hot drink, while a more patient one has learned to wait, and sip.
Cooking alchohol long enough and hot enough would render all the alchohol out of it.
Throwing a hot drink could cause mild burns.
A moody dwarf might throw a cold drink at a dwarf she dislikes, choosing not to harm physically, but causing humiliation in a more socially accepted way. Getting splashed by a cold drink could cause an unhappy thought.
I know it's not a huge suggestion, but I think everything here could eventually be done in DF (probably some of it is already planned), and it would be remarkable to see something this small, yet this complex, going on in the game.