In Gushi, whenever a distinguished guest comes to the door, the qualified host will take leather silk to dinner to show hospitality. According to legend, the production of leather silk began in the late Ming Dynasty, and it was originally refined from clean pigskin selected by the owner of a restaurant in Gushi County. Originated from skin, it is as thin as silk, hence the name "Pisi". Because of its pleasant flavor, exquisite production and rich nutrition, it was famous all over the world in the Qing Dynasty and was listed as a tribute and entered the palace banquet. 19 15, GuShi Silk Skin was exhibited at the Panama World Expo as a special product of China.