15 episode. In The Knockout 15 episode, Chenpi appeared twice. First, Gao Qi advised his younger brother A Sheng to drink more dried tangerine peel and less, because dried tangerine peel is good for his throat. In fact, this may be an aged tangerine peel prepared by Gao Qiqiang for his father Chen Tai. Because the old tangerine peel appeared again, at dad's house. Xinhui Chenpi, a specialty of Xinhui District, Jiangmen City, Guangdong Province, is a landmark product of chinese national geography. The longer the orange peel is stored, the better. Pericarp or orange peel with a storage period of less than three years is called Chenpi, and those with a storage period of more than three years are called Chenpi.