Chenpi is the ripe, dried rind of the orange and its cultivated varieties in the Brassicaceae family.

Chenpi is the name of a traditional Chinese medicine. The herb is divided into "Chenpi" and "Guang Chenpi". Mature fruits are picked, peeled and dried in the sun or at low temperature.

Physiological properties:

1, Chenpi

Often peeled into a number of petals, the base is connected, and some are irregular sheet, 1~4mm thick, the outer surface of the orange-red or reddish-brown, there are fine wrinkles and concave dotted oil chamber; the inner surface of the light yellowish-white, rough, attached to the yellowish-white or yellow-brown sinewy vascular bundles. The texture is slightly hard and brittle. Aromatic, pungent, bitter flavor.

2, Guang Chen Pi

Often 3 petals connected, neat shape, uniform thickness, about 1mm, dotted oil chamber is larger, to the light, transparent and clear. The texture is soft.

Pericarp production process notes:

The production process to get all the pericarp, you can add the right amount of salt, pickled plum brine, and then add some alum, together with the tank inside the impregnation, after 48 hours, fish out the orange peel, scalded and rinsed in boiling water for 2 minutes, and then immediately rinsed in tap water. The licorice boiled into water, and then filter off the dregs for concentration, and then add the appropriate amount of sugar crystals as well as sugar dissolved, made into a thick juice after the standby, will be the orange peel billet the deceased in the tank.

Boiled licorice juice poured into the tank and cover, stewed for 2 hours, take out the orange peel and part of the juice, together with uniformly in the baking tray, sent to the drying room. To be dry and then add the original juice, can be repeated several times. After the last addition of drying, out of the drying room that is added to the finished weight of 1% licorice powder, mixing evenly, that is, nine system of Chenpi.