First of all, citrus peel has been used as a traditional Chinese medicine in China for more than two thousand years, but the word "dried tangerine peel" became more and more popular after the Song Dynasty. It is the word "dried tangerine peel" in the strict sense of the Song Dynasty and its book "Fang Jisheng".

Chenpi is made of dried citrus peel, which is the natural prescription of citrus peel after many years. It is produced in many places, such as Guangxi, Hunan, Zhejiang, Fujian and so on. Among them, Xinhui is the best, known as Xinhui Chenpi, also known as Guangchenpi, Zhougang Red Peel and Xinhui Chenpi. Xinhui Yunxiang tea orange as raw material needs to be preserved for a long time (more than three years) after drying, and its value is much higher than that of ordinary orange peel.

Moreover, Li Shizhen in the Ming Dynasty clearly classified the difference between oranges and oranges in Compendium of Materia Medica, and said: "The orange peel is thick, yellow and thick, with a white film inside, and it tastes sweet. Today, the people who widely adopted it in China won. " "Guangzhong" is today's Xinhui, and the raw material of Xinhui tangerine peel is tea branch orange peel. Therefore, it is well known that Xinhui citrus has always been more expensive than meat.

It is generally believed that only mature orange peel can be made into dried tangerine peel, and it is a good quality and relatively expensive orange peel. Citrus peel stored for more than three years is tangerine peel with medicinal value, which is much higher than ordinary orange peel. In other words, the raw material of dried tangerine peel is orange peel. So, what's the difference between orange peel and orange peel?

Oranges: Actually, oranges and oranges are the same. The fruit is small, oblate, orange red, vermilion or orange yellow. The peel and sponge layer are thin, sweet and sour, and are not resistant to storage. Common oranges (oranges) include Nanfeng orange, sugar orange and rock sugar orange, which are not suitable for dried tangerine peel. Orange peel, which has been stored for less than three years, has a strong and bitter taste and is not suitable for direct consumption. It takes time to temper and grow.

Citrus: The fruit is large, spherical, with yellow, orange-yellow or orange-red skin, thick skin and sponge layer, which is suitable for storage. Common oranges are Xinhui orange, Chaozhou orange and Shandong orange.