According to legend, at the end of the Yuan Dynasty, Zhu Yuanzhang was hunted by the Chen Youliang army to a camellia forest in Jianchang (now Jiangxi). Seeing this situation, the old farmer who was picking camellia trees used his quick wits to dress up Zhu Yuanzhang as a farmer picking camellia fruits and survived. Zhu Yuanzhang affectionately called the old farmer the "old cousin" who saved his life. My cousin saw Zhu Yuanzhang covered in injuries. Coat him with tea oil. A few days later, Zhu Yuanzhang felt that the wound on his body was healing and the redness gradually disappeared, so he was happy to call this camellia fruit "a miracle fruit given by God". Later, I rested at my cousin's house for a while, and my constipation got better again. He learned that it was because he ate tea oil every day. From then on. Zhu Yuanzhang had an indissoluble bond with tea oil. After Zhu Yuanzhang unified the world, he named Jiangxi Tea Oil as "Imperial Edible Oil". Because of Ming Taizu's love and attention to tea oil. Later, tea oil was presented to the court as a first-class tribute in all parts of Jiangxi, and the emperor was delighted, named "Imperial Delicious Juice, Longevity Tea". It is enough to show that enjoying tea oil is a status symbol.