Ok, there is no tea. It is served in a tea cup from a tea pot though. This is a lovely and very impressive way to serve Tom yum soup. Tom yum is a hot and sour Thai soup, traditionally served with prawns. I have put oyster and chestnut mushrooms in the recipe because they are easily available, but feel free to use any mushroom. I have not played with this recipe so you can serve this in the traditional way or you could clarify the soup and serve it this way.