According to ancient documents named "Chakyo (Chaijing)" written by a Chinese, U RIKU, in about 8th century, on the effects and usages of tea drinking, people at that time were said to have prepared tea to drink by dancha-ho, a method of preparing tea to drink by reducing a block of solid tea into powder and decocting it in a pot (called fuku.)
8世紀頃、中国の陸羽が著した『茶経』（ちゃきょう）には茶の効能や用法が詳しく記されているが、これは固形茶を粉末にして鍑（釜のこと）で煎じる団茶法であった。