Raw material processing tools: 3 crushers, 4 mixers, 4 cold air equipment, 2 exhaust equipment, 2 large workbenches, 3 infrared baking ovens, 6 electronic measuring equipment, 25 knife molds Provincial intangible cultural heritage Zitong shortbread making skills Zitong shortbread has a long history. Legend has it that during the Tianbao period of the Tang Dynasty, Emperor Xuanzong of the Tang Dynasty, Li Longji, fled to Shu to avoid the Anshi Rebellion and came to Shangtingpu, Zitong. Hearing the bell in the night rain, he missed the dead Yang Guifei so much that he lost his appetite and was heartbroken. At this time, local officials presented him with local specialty shortbread. When he saw the round and lovely shortbread, he was delighted. After tasting it, he was really good and praised the shortbread. From then on, Zitong shortbread was listed as a tribute to the court, so it was also called "tribute cake". Zitong shortbread is a local specialty snack with unique flavor and exquisite production technology. It is famous for its thin and crispy skin, fragrant and moist, melting in the mouth, bright yellow color, clear texture, and round like the autumn moon. It is not only a festival delicacy, but also a precious gift for distant relatives and friends. It is very popular. In July 2011, the production technique of Zitong pastry was announced by the Sichuan Provincial People's Government as the third batch of provincial intangible cultural heritage protection list.