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Cold-chain logistics refers to frozen frozen products in production, storage, transportation, sales, to the consumption of each link has been in low temperature environment, to ensure the food quality, reduce product loss a systems engineering. Compared with normal temperature logistics, the main difference is the need to keep low temperature, cold chain, all the concerning subjects more, management is more complex, high cost.

Cold-chain logistics on time, quality, temperature, humidity and sanitation have special requirements, work is relatively complicated, there are three main features:

(1) the timeliness

Due to bearing products cold chain logistics is commonly perishable or not easily stored, and therefore requires cold-chain logistics to finish your homework quickly, guarantee the timeliness.

(2) complexity

Compared with normal temperature logistics, cold chain logistics involves refrigeration technology, heat preservation technology, temperature and humidity testing, information systems and products change mechanism research, some products even involve the constraints of laws and regulations, and each product by its corresponding requirement for temperature and humidity and storage time, once broken will cause the previous efforts were in vain, thus greatly increased the complexity of the cold chain logistics.

(3) the high-cost nature

Cold chain logistics cost is far higher than normal temperature logistics investment. First is the equipment cost is higher, the cost of warehouse and cold chain vehicle cold-chain logistics center is usually several times the normal temperature warehouse and vehicles, and because of involving food need special equipment, such as need a large amount of capital investment; Second cold chain logistics operation cost is higher, the cold storage need uninterrupted cooling-down to guarantee in a state of constant temperature, cold storage of high power cost; Refrigerator car also need uninterrupted cooling-down of constant temperature, to ensure that products will need more fuel. Cold chain logistics capital payback period is longer, is not a general enterprise can bear.