hi,
in my trips to china, i remarked that many workers have a portable teapot, usually made of plastic. they are cylindrical, and have a filter on top so that leaves do not get into the mouth.
ok, for that it is ok, a very useful teaware. but what shocks me is that tea is not supposed to overbrew, and people using that may leave the tea there for many minutes, maybe more than 1 hour (so it gets cold). can anybody explain about that?