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
Ginseng tea Ginseng tea Ginseng tea or insam-cha () is a traditional Korean tea made with ginseng. While it is called a tea, ginseng tea does not contain tea leaves. It is an herbal tea infusion made out of the ginseng plant's root. Ginseng tea is traditionally prepared with Korean ginseng along with jujubes and dried Korean chestnuts. These are decocted for several hours over a low heat, sweetened with honey, and served with Korean pine nuts floating on top. Either fresh ginseng () or red ginseng () can be used. Ginseng tea also comes in powdered form in single-serve foil packets.