Chuanshan tofu skin oil is bright and lustrous, with fine lines, soft and smooth, soft and elastic, soft and soft. Among them, five fragrances are golden in color, and the small sesame oil is rich in aroma; the spicy color is red and bright, spicy and refreshing, and the aftertaste is long.

Chuanshan tofu skin is a special product of Chuanshan. After being protected by geographical indication products, it has achieved great social and economic benefits. At present, 10 enterprises in Chuanshan District have produced Yushan bean curd skin. After being protected, the price of Chuanshan bean curd skin has increased from 9 yuan/bag to 10 yuan/bag, the annual output value has increased to 58 million yuan, and the total profit and tax has increased to 2.3 million yuan. An increase of 300,000 yuan before the protection. Product Awards “Zhushan Tofu Skin” produced by Xu Laosan Food Factory was rated as “Summer Consumers' Favorite Goods” by the Provincial Consumers Association, “Sichuan Excellent Tourism Goods” by the Provincial Tourism Administration, and “Quality Products” of the Suining People’s Government. The Municipal Industry and Commerce Bureau has been a “well-known trademark” for 10 consecutive years. In 2012, it was successfully declared as a municipal-level intangible cultural protection project. In 2001, the “Zhushan Tofu Skin” produced by Xiao Laosan Food Factory was awarded “Excellent New Product of Sichuan Province” by the Sichuan Provincial People's Government.

Technical requirements for quality of Chuanshan tofu skin I. Requirements for raw and auxiliary materials 1. Raw materials: Select high-quality soybeans in the production area, the seeds are full, and the protein content is ≥ 45%. 2. Excipients: sesame and small-milled sesame oil and chili oil in the production area, calcium chloride and magnesium chloride produced in Suining (commonly known as chin), formulated with Chuanbai, Jiuye green pepper, Zhongfu pepper, perilla, fennel, etc. Halogen. 3. Water: Groundwater in the production area, the water quality meets the national drinking water standard, and the metasilicate is 3.0 to 33.5 mg/L, 锶≥0.08 mg/L, and the pH is 6.0 to 7.0. Second, the processing technology 1. Process: soybean → screening → soaking → refining → boiled pulp → pulping → camphor → pressure molding → blanking, cutting → halogen → drying → brushing oil, mixing materials (five fragrance , spicy taste) → bagging and evacuation → sterilization → packaging → factory. 2. Process points: (1) Soaking: water temperature 15 ° C to 20 ° C, soaked until the surface is smooth, wrinkle-free skin, hand touch has a loose feeling. (2) Refining: The concentration of soy milk is 10 to 11 degrees. (3) Cooking pulp: The temperature is controlled above 97 °C and kept for about 3 minutes. (4) Pointing and camphor: diluted with 15% to 18% as a coagulant, and the temperature of the slurry is controlled at 90 °C. After the pulping, the camphor is 10 minutes to 15 minutes. (5) Pressure forming: divided into two stages, namely pre-pressing and pressurizing. (6) Blanking and cutting: The white blanks are overlapped on either side and cut vertically. (7) Halogen: The time is about 20 minutes to 30 minutes. (8) Drying: dry naturally. (9) brush oil, mix: five scent brush small grinding sesame oil; spicy pepper oil. Third, the quality characteristics 1. Sensory characteristics: oily luster, fine lines, soft and smooth, soft and elastic, soft and soft. Five scented golden color, small sesame oil aroma; spicy color bright red, spicy and refreshing, long aftertaste. 2. Physical and chemical indicators: protein content ≥ 15%, salt ≤ 4%, moisture content ≤ 70%. 3. Safety and other quality technical requirements: Product safety and other quality technical requirements must comply with relevant national regulations.

Apply to：
Producers within the scope of Chuanshan tofu skin production area may apply to the Shipbuilding Quality and Technical Supervision Bureau of Suining City, Sichuan Province for the use of the “Special Mark for Geographical Indication Products”, which shall be reviewed by the Sichuan Provincial Bureau of Quality and Technical Supervision and submitted to the General Administration of Quality Supervision, Inspection and Quarantine for approval. announcement.