Northern Song official and one of the four great Song calligraphers, 宋四家. As prefect of Quanzhou he built the stone 洛阳桥, and his 茶录 is an early classic on tea.
Cài Xiāng xiě de 《 Chá Lù 》 shì Zhōngguó chá wénhuà de zhòngyào wénxiàn.
Cai Xiang's Record of Tea is an important document in Chinese tea culture.
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history
The four masters are also listed as 苏黄米蔡, and one tradition says the 蔡 first meant 蔡京, swapped for Cai Xiang because Cai Jing was a notorious minister. Cai Xiang also wrote 荔枝谱, a guide to 32 lychee varieties.