Zhenglan Banner Milk Skin

Zhenglan Banner Milk Skin

Zhenglan Banner Milk Skin is a geographical indication protected product.

　　Zhenglan Banner Milk Skin (Zhenglan Banner Wurmu)

　　Quality and Technical Requirements

　　I. Raw Material Requirements

　　Raw cow's milk produced within the designated origin area, complying with relevant national regulations.

　　II. Production and Processing Requirements

　　1. Process Flow:

　　Raw milk → Filtration → Heating → Simmering → Standing → Boiling → Sun-drying → Inspection → Packaging → Refrigeration.

　　2. Processing Key Points:

　　(1) Filtration: Filter at least once using clean, disinfected double-layer gauze or other filtering equipment.

　　(2) Heating: Place the filtered raw milk in clean cast iron pots, stainless steel containers, or other heating vessels, and slowly heat to 75°C–80°C over low heat.

　　(3) Simmering: Continuously and evenly stir the milk to form a foam layer 2 cm–3 cm thick on the surface.

　　(4) Standing: Maintain at 75°C–80°C for 1–1.5 hours to allow the foam to gradually subside, forming a honeycomb-like milk skin layer. Allow to cool naturally at room temperature and stand for 2–2.5 hours.

　　(5) Boiling: Continue heating to 92°C, add an appropriate amount of raw milk at room temperature, maintain at 85°C–92°C for 2–2.5 hours, then allow to cool naturally at room temperature and stand for about 2–2.5 hours. Repeat this process one to two times.

　　(6) Sun-drying: After cooling naturally at 8°C–16°C for 10 hours, take out the formed milk skin from the pot, fold it, and sun-dry in a shaded, ventilated area.

　　III. Quality Characteristics

　　1. Sensory Characteristics: The color is milky white or light yellow, with the distinctive pure cream aroma of milk skin. It has a fine texture, neat shape, and an evenly distributed honeycomb-like concave surface.

　　2. Physicochemical Indicators: Moisture (g/100g) ≤ 26.0, Fat (g/100g) ≥ 65.0.

　　3. Safety and Other Quality Technical Requirements: The safety and other quality technical requirements of the product must comply with relevant national regulations.

　　Mongolian Autonomous Region Bureau of Quality and Technical Supervision

　　Zhenglan Banner Milk Skin (Zhenglan Banner Wurmu)

　　Within the administrative regions of eight towns and state-owned farms in Zhenglan Banner, Inner Mongolia Autonomous Region: Naratu Sumu, Baoshaodai Sumu, Saiyinhuduga Sumu, Shangdu Town, Habirga Town, Sanggendalai Town, Wuyi Ranch, and Heichengzi Demonstration Zone State-owned Farm.

　　"Request from Zhenglan Banner People’s Government Regarding the Delimitation of the Geographical Scope for the Protection of Geographic Indication Products: Zhenglan Banner Milk Tofu and Milk Skin," Lan Zheng Fa [2011] No. 59

　　Product Standard of Zhenglan Banner Chahar Dairy Association: Q/ZLQS02-2012 "Zhenglan Banner Milk Skin"