12 things about tea -- your local dim sum restaurateur won't tell you A tea master gives us some advice on how to make sure we're getting the best brew for our buck. Master Leung Ka-Dong has been working at Ying Kee Tea House for almost 40 years. "What type of tea do you usually order when you eat dim sum?" asks Ying Kee Tea House Master Leung Ka-Dong. "I usually …