Mel that is a great idea!

DD always liked hers cool, so from the fridge and in the microwave for 20 secs or so if we were at home. or if out, i would put them from the fridge to the bottle bag and she would drink it at whatever temp it had cooled to! she has never drunk a warm bottle, and still will only drink ice cold milk from the fridge.

forgot to add my friend tried this with her son and he hated it with a passion lol. warmed milk all the way for him!