Recently, citizens of Jinan reported that the meat that was bought in supermarkets was frozen on the refrigerator and frozen. The reporter investigated a number of plastic wraps sold in supermarkets in Jinan City and found that many cling film components were more vague.
The reporter dialed a plastic wrap factory and introduced by factory staff. At present, there are three types of cling film, one is polyethylene (PE), the other is polyvinyl chloride (PVC), and the other is polyvinylidene chloride (PVDC). . Among them, most of the semi-finished products purchased in supermarkets are packaged with PE cling film. The advantages are moisture resistance and good air permeability. The disadvantages are poor gas barrier properties, and it is not suitable for packaging oils and fats. PVC cling film can only be used for packaging vegetables, fruits, foods can not be directly packaged meat, cooked food and fat foods, and can not be directly heated to use. PVDC cling film can be used to package cooked foods and other foods with high gas barrier and oxygen barrier requirements, but the cost is high and the retail market is less common.
The staff reminded that many plastic wraps are marked with warning signs “Can't touch foods with fats,†“Can't be heated in a microwave oven,†and “No high temperature useâ€. This cling film should be a PVC cling film for the public. Select and do not use such cling film to pack meat.
China Packaging Network Editor reminds everyone that cling film is not used in any product can be kept fresh, customers and friends in a certain plastic wrap for packaging should first understand the cling film labeling to see what ingredients are contained , and then according to the characteristics of the product packaging.
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