Because mint leaves were an important food seasoning in the Tang Dynasty. Moreover, people in the Tang Dynasty believed that mint leaves could freshen their breath, so they often chewed some mint leaves after meals or after tea to remove the odor in their mouths.

Mint is one of the commonly used traditional Chinese medicines in China. It is a pungent and cool diaphoretic and antipyretic medicine, used to treat influenza, headache, red eyes, body heat, throat and gum swelling and pain. External use can treat neuralgia, itchy skin, rashes and eczema. Usually, mint is used instead of tea to clear the mind and improve eyesight. In China, Jiangsu and Anhui provinces produce the largest mint. There are three methods of planting mint: rhizome planting, division planting and cutting propagation.