In recent years, many plastic barrels of liquor have appeared in supermarkets. Recently, some professionals pointed out that plastic barrels of liquor after buying home, try to change into glass bottles to avoid potential safety problems.
According to Zhang Yaoquan, president of Zhejiang Packaging Technology Association, there are two main types of food-grade plastic packaging materials: one is common PE (polyethylene) plastic, and the other is environmentally friendly PET (polyester) plastic. The former applies to ordinary foods and beverages, and the latter applies to foods and beverages with strong solubility such as wine and edible oils.
It is understood that because it is not mandatory labeling content, many bottled spirits do not indicate the material used in the packaging barrel, which makes consumers unable to identify. Zhang Yaoquan said that it is not ruled out that some manufacturers use low-priced polyethylene plastic buckets to hold white wine for cost considerations.
Professor Mao Jianwei, dean of the School of Biological and Chemical Engineering at Zhejiang University of Science and Technology, said that using ordinary polyethylene plastic barrels for liquor, especially for liquors with a high degree of alcohol content, the polyethylene will be dissolved by alcohol, and the longer it dissolves, the more it dissolves. People who drink this kind of wine may cause skin allergies, which can lead to anaemia. PET is a new kind of high-molecular-weight polyester material, and its molecular structure is more stable. It has been widely used abroad for the packaging of low-alcohol wines such as beer. However, although this material is harmless, it is not as leakproof as a glass bottle, so it should not be stored for a long time.
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