If we could harvest a block of ice from snow biomes, break up the ice into chunks (the block and chunks would have a melt timer on them) and then add it to cooled (not piping hot) tea, we could make iced tea

It would basically get the same bonus back as it had when piping hot, and the same timer, but at the end of the timer would turn into watered down tea which would restore stamina at the same rate as equal quality water. You basically have brown water at this point, heh.