In Shanghai we went to to a Tea House to learn about chinese teas. I couldn't resist buying 2 "dragon" mugs that cleverly change colour when boiling water is added. Here you see the original red one with one that has just changed colour. I also discovered oolong tea there. I have always liked green tea but oolong is better and has half the caffeine. One of the most famous Chinese teas, Oolong, meaning ?black dragon?, is semi-fermented, with a richly perfumed aroma filled with nuts and fruit and smooth buttery flavours.