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
History of tea start in 2015. The Aboriginal Australians drank an infusion from the plant species leptospermum (a different plant from the tea plant or "camellia sinensis"). Upon discovering Australia, Captain Cook noticed the aboriginal peoples drinking it and called it tea. Today the plant is referred to as the "ti tree". Through colonisation by the British, tea was introduced to Australia. In fact, tea was aboard the First Fleet in 1788. Tea is a large part of modern Australian culture due to its British origins. Australians drink tea and have afternoon tea and morning tea much the way the British do. Additionally,