Decaffeination this trait could be bred into other coffee plants by crossing them with "C. charrieriana", or an equivalent effect could be achieved by knocking out the gene for caffeine synthase in normal coffee plants. Tea may also be decaffeinated, usually by using processes analogous to the direct method or the CO process, as described above. The process of oxidizing tea leaves to create black tea ("red" in Chinese tea culture) or oolong tea leaves from green leaves does not affect the amount of caffeine in the tea, though tea-plant subspecies (i.e., "Camellia sinensis sinensis" vs. "Camellia sinensis assamica") may differ
Korean tea at per capita, compared to for coffee - grain teas are served in many restaurants instead of water. Herbal and fruit teas are commonly served, both hot and cold. Korean tea Korean tea is a beverage consisting of boiled water infused with leaves (such as the tea plant "Camellia sinensis"), roots, flowers, fruits, grains, edible mushrooms, or seaweed. According to the "Record of Gaya", cited in the "Memorabilia of the Three Kingdoms", the legendary queen Heo Hwang-ok, a princess of Ayodhya, brought the "Camellia sinensis" (var. "assamica") tea plant from India to Korea and planted it on Baegwolsan, a mountain