just the basic basics
Now how hard can it be to brew a cup of tea? One answer is, "very easy", the other answer is "very hard". I leave the choice to you. Like most things, the more you learn the more you realize, you need to learn more! When brewing multiple rounds (4~5), each round can and should taste about the same. Yet getting the parameters right is no easy task. That is why they call it Gongfu Tea.