In recent years, the safety of food gets more and more concentration, the cold chain is very popular in our life, making a big contribution to our country's retail sales. In the supermarket, there are many fresh food and refrigerated food, if a supermarket has a perfect cold chain link, it will guarantee the quality of frozen foods, cold chain management is very important to the food. This article choose China and United States' cold chain link as object and compared the cold chain between two countries, meanwhile, it analyzes the effect of cold chain to the quality of fresh food.
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