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Cold chain logistics is composed of many links, from food raw material planting and procurement, processing, circulation and distribution, until the whole process of retail and consumer, is a complicated system engineering in low temperature, to ensure the quality of each link of the safety problem is the core of cold chain logistics. To ensure the frozen food quality and safety, the key is "cold chain" can't break, that is to say the food in the process of manufacture, storage, transportation, distribution, retail, should always be under controlled temperature. And the number of refrigerator car is insufficient and operation is not standard, is becoming the important safety hidden danger of food cold chain. Due to many reasons, in recent years, China's frozen insulation cars remains at 4000 ~ 5000, annual sales far cannot satisfy the actual demand for frozen food market.

Why a lot of frozen food is "jiaozi on the pot, fish pot is broken", such as quality problems? Perishable foods in the way in transportation temperature fluctuations. The cause of this situation, in addition to food cold chain in transportation, supermarkets and shopping malls such as improper storage caused the cold-chain food "thrown off", one of the most important reason is that at present our country cold chain logistics standards. On the one hand, at present our country cold chain logistics in the national standards, industry standards and local standards on the cross; , on the other hand, most of the standard of cold chain logistics is recommended standards, more is not mandatory.

The implementation of the new food safety law will make the whole process from warehousing, transportation to cold chain distribution, to the end consumer, all constraints within the specified temperature range. It involves the personnel equipped, with the loading efficiency, time and so on. For example, can be fine to each vehicle must be equipped with two pilots, in order to prevent the fatigue driving, once every four hours to replace the driver; To put the two temperature controller, middle one, placed behind a; Each car is equipped with infrared detector, in order to measure temperature before loading, as a product of outbound temperature for the cold chain transportation is very important, first of all, from the starting point is the temperature control is good, and then the way every 4 hours to do a temperature record. To ensure the quality of food, not just the low temperature, more important is to "constant". Constant temperature, the need to implement strict standards. With mandatory regulations standard in the cold chain logistics industry will form a binding, and the cold chain logistics industry norms guiding role.