Bieben chajing 別本茶經

Bieben chajing 別本茶經 "Another version of the Classic on Tea" is a book on tea compiled during the Ming period 明 (1368-1644) by Tang Xianzu 湯顯祖 (1550–1617), who is better known as the author of the theatre play Mudanting 牧丹停 and is also referred to with his style Yumingtang Zhuren 玉茗堂主人 "Master of the Hall of Jade Tea".

The Bieben chajing is a supplement to the famous Tang-period 唐 (618-907) book Chajing 茶經 "Classic of Tea" by Lu Yu 陸羽 (733－804). This "classic" constitutes the first of the three fascicles (juan) of Tang Xianzu's book. The second juan (Shuibian 水辨) deals with various waters used for cooking tea, and the third juan (Houji 後集) includes various information, like the general conditions of growing tea, various qualities, areas of production and the preparation of water. It also introduces some poems and prose texts on tea.

The composition of the book is very heterogeneous, not well-balanced, and includes many errors. The name of the poet Huangfu Ran 皇甫冉 (c. 717–c. 771), author of the poem Song Lu Hongjian shanren cai cha 送陸鴻漸山人採茶, is falsely written Huangfu Zeng 皇甫曾 (who is a different person, d. 785), and two quotations of the writings of Ouyang Xiu 歐陽修 (1007–1072) are listed after such of Su Dongpo 蘇東坡 (1037–1101), who lived later than Ouyang. A quotation from Shen Kuo's 沈括 (1031－1094) Mengxi bitan 夢溪筆談 is arranged as if extracted from Zhang Youxin's 張又新 (fl. 814) Jian shashui ji 煎茶水記, and some more. Most critically, the original text of Lu Yu's Chajing is shortened in several passages. Some scholars are, therefore, convinced that Tang Xianzu was not the book's real author. Sun Dashou 孫大綬 (fl. 1588) served himself of the fascicles 2 and 3 for his books Chajing shuibian 茶經水辨 and Chajing waiji 茶經外集.

The Bieben chajing was once presented to the compilers of the imperial series Siku quanshu 四庫全書 by Bao Shigong 鮑士恭 (b. c. 1750) from his private library, but it was not included in this collection and is rarely found anywhere.