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
Tea processing fresh tea leaves was to immediately steam the fresh tea leaves and dry them for preservation, which is likely the most ancient Chinese form of tea leaf processing. This processing method was perfected near the end of the Han Dynasty (206 BCE-220 CE) and produced a dried tea that would be classified today as "green tea" and quite similar to modern Japanese sencha. For consumption, dried tea leaves were either decocted with water around with other herbs, or ground into a powder to be taken straight, or in a liquid in the manner of matcha. With the increase of tea's