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
Ginger tea popular. "Wedang Jahe" is a type of Indonesian ginger tea. "Wedang" in Javanese means "hot beverage" while "jahe" means "ginger". Although devoid of any caffeine content, it is often served and enjoyed as an invigorating tea. It is made from ginger rhizome, usually fresh and cut in thin slices, and palm sugar or granulated cane sugar, frequently with the addition of fragrant pandan leaves. Palm sugar can be substituted with brown sugar or honey. Traditionally people might add spices such as lemongrass, cloves and/or cinnamon stick. Milk, either fresh or condensed, might be added. In Japan, it is called "shōgayu"