Qingjian is an out-of-season orange product. It is listed as fresh fruit from February to May every year. This product is divided into three grades: the appearance is oblate, orange-yellow, with fine oil cells, smooth color and elegant appearance. The fruit is tender and seedless, juicy and dull, sweet and sour, thirst-quenching, sober up and diuretic. Origin: Dan Ling County, Meishan, Sichuan.