Cha Jing (" The Classic of Tea ") by Lu Yu (733-804) of the Tang dynasty, categorized teas into coarse tea, loose tea, powder tea and brick tea, all of which were steamed green teas.
唐代陸羽《茶經》中已出現觕茶（粗茶）、散茶、末茶、餅茶四種分類，皆屬蒸菁綠茶。