Tang Jingzong's exploitation of Qingfeng Rice should begin in the summer of the second year of his succession. It was particularly hot this summer, which made Tang Jingzong very unhappy. Coupled with his bad temper and a little unhappy, he beat and scolded the eunuch to vent his anger.
In order to please, Prime Minister Li found a way to cool off in an ancient book. This kind of food is called "breezy rice". Later, the monarch and his subjects began to study cool breeze rice. The specific method is: put a bowl of crystal rice (crystal rice), sprinkle with Longjing powder and borneol powder, put it in a long-handled gold cup, then put it in the ice room, and take it out after a few hours.
When Tang Jingzong first ate "Breeze Rice", he felt a cold air coming at him as soon as he tasted it. The heat dissipated most of the time, which was really cool. Since then, "Breeze Rice" has become a delicacy in Tang Jingzong. As long as the weather is hot, you will use a "clean fan" to cool yourself down.
However, everything has two sides. "Breeze rice" is cool and well done. It is a good way to cool off the heat, but it is also a talisman. Why do you say that? Because "Qingfeng rice" is poisonous.
We can look at the recipe of "Qingfeng Rice". There are only three kinds of raw materials, rice, a dairy product, dzi beads powder and borneol. There is no problem with the small formula of dairy products and rice. The key is the following two prescriptions: Tianzhu powder and borneol. In fact, these two materials are similar to borneol.
Borneolum Syntheticum is crystallized from the stems and leaves of Artemisia and Cinnamomum camphora by steam distillation. It is the essence of natural plants. Borneolum Syntheticum is commonly used in traditional Chinese medicine to treat red eyes, sore throat, and aphtha. There are many records about borneol in Chinese medical classics, such as Tang Herbal Medicine: borneol tastes bitter and cold. It is also recorded in Materia Medica. Its taste is bitter, spicy, warm and nontoxic.