Cold chain is an important means to maintain the color, smell and taste of food, and it has low cost and long preservation time. Temperature is the main factor affecting the quality of the dish. At present, in the production of clean vegetables, overseas mainly adopts low-temperature refrigeration sales systems.

If fresh meat is cut into pieces or cooked, put it in fresh lard. Fermentation can sometimes be done. The rapid reduction of temperature after harvest to the lowest temperature that the product can tolerate is the best way to control microbial spoilage after harvest. Therefore, the composite modified atmosphere fresh-keeping can ensure the original food's taste, taste and nutrient components, and truly ensure the original juice, original taste and appearance of the food.

In order to meet the operational requirements of the food packaging production line, the modified atmosphere packaging machine should also have assembly line functions such as weighing, coding, and labeling. Cost Equipment Pre-cooling rate Range of application Crushed ice Pre-cooling Cheap ice machine Fast onion, some cauliflower, root vegetables, Stewed vegetables Pre-cooled ice water Cheap ice machine Fast fruit, tender stems, fruit Pre-cooling Also known as differential pressure air-cooling. Park products are placed in refrigerators and are arranged differently depending on the product. The cold air is forced by one side of the product packaging and is in direct contact with the product, taking away heat from the field. At present, China's Shanghai and other economically developed regions such as Shanghai Shangdai produced advanced technology of the packaging machine, can be comparable with similar products in Europe and the United States and other countries, and has more suitable for people eating habits, cost-effective advantages. The gas used for the modified atmosphere packaging of such foods consists of CO2 and N2. Cream-free cake at room temperature preservation 20-30 days, moon cake, pudding cake with high barrier composite membrane at room temperature preservation time up to 60-90 days. The trend of the development of preservatives in the future is natural preservatives, such as the use of antioxidant properties in tea to preserve freshness, or to extract active ingredients from spices to sterilize and inhibit bacteria, which is safe and effective.

If the internal unit selects Emerson Copeland, the effect will be more pronounced. The quality of the joint venture brand is guaranteed.