Building requirements of 1. plant
1. The buildings of the plant should be durable, easy to maintain, easy to clean, and have structures that can prevent food, food contact surfaces and inner packaging materials from being contaminated (such as the invasion, habitat, reproduction, etc. of harmful animals).
2. In order to prevent cross-contamination, personnel channels and material transportation channels shall be set up respectively. Each channel shall be equipped with insect control facilities such as air curtain (I. e. air curtain) or two-way spring door and electronic fly (mosquito) killing device.
3. The gaps around the pipelines, doors and windows and ventilation ducts leading to the outside world shall be completely filled, and all windows, vents and fan openings shall be equipped with protective nets.
4, the height of the production plant should be able to meet the process, health requirements, and equipment installation, maintenance, maintenance needs.
2. ground and drainage ground should use non-toxic, impermeable, non-absorbent, non-slip, no cracks and easy to clean and disinfect building materials paving (such as acid-resistant bricks, terrazzo, concrete, etc.), the ground should have an appropriate slope (1.0~1.5% is appropriate).
3. roof and ceiling 1. The roof and ceiling should be coated or decorated with light-colored materials that do not absorb water, have smooth surface, are non-toxic, mildew-proof, corrosion-resistant and easy to clean, which can reduce condensation and dripping in structure.
2, food and food contact surface exposed above should not be equipped with steam, water, electrical and other auxiliary pipes, to prevent dust or condensed water from falling.
4. walls and doors and windows
1. The walls of the production workshop shall be constructed of light-colored materials that are non-toxic, non-absorbent, non-permeable, mildew-proof, smooth and easy to clean. The height of decoration with this material shall reach the roof.
2. All door and window structures should adopt a sealed frame that is rust-proof, moisture-proof and easy to clean. 5. daylighting and lighting facilities workshop shall have sufficient natural lighting or artificial lighting, the mixed illuminance of the working face of the processing site shall not be less than 300Lx, and the batching and filling workshop shall not be less than 800Lx. 6. air treatment and purification facilities
1. Effective ventilation equipment must be installed in the workshop, and the air flow direction should be from the clean area to the non-clean area. When mechanical ventilation is used, the air exchange rate should be greater than 3 times/hour.
The temperature of the clean workshop should be controlled between 15 and 27 degrees Celsius, and the humidity should be controlled below 50%.
3, clean workshop entrance should be equipped with personnel and material purification facilities.