Dim sum various mixtures of flowers with green tea, black tea or oolong tea. Flowers used include jasmine, gardenia, magnolia, grapefruit flower, sweet-scented osmanthus and rose. There are strict rules about the proportion of flowers to tea. Jasmine tea is the most popular type of scented tea, and is often the most popular type of tea served at yum cha establishments. The above teas are produced in most of China. Chinese tea bushes ("Camellia sinensis") are cultivated in the mountain areas of tropical and subtropical regions or wherever there is a proper climate, sufficient humidity, adequate sunshine and fertile soil. Chinese tea
Compressed tea consumed after they were broken into small pieces and boiled. Traditionally in Tang Dynasty, they were consumed after having been ground to a fine powder. The legacy of using tea bricks in powdered form can be seen through modern Japanese tea powders as well as the pulverized tea leaves used in the "lei cha" () eaten by the Hakka people and some people in hunan province. In ancient China the use of tea bricks involved three separate steps: In modern times bricks of "pu-erh" type teas are flaked, chipped, or broken and directly steeped after thorough rinsing; the process of