Like orange yellow in red color, processing orange to brown.Orange, orange peel is our common life said.Rutaceae plant orange and cultivar (the Latin name is abbreviated) peel the outer layer of ripe red part.Native to guangdong maoming huazhou city.It absorbs the chlorite schist of the ground soil minerals and magnesium, according to existing historical data, pummelo peel originally wild grapefruit tree, as a result of absorbing the local soil contained in the chlorite schist (chlorite schist of dense cure phlegm, wonder drug addiction jie, phlegm to cough since except), and after a long time, gradually evolved.