Food cling film is a packaging material commonly used in people’s daily life to wrap food to preserve freshness and prevent contamination. However, many people may have some confusion about the selection and use of food cling film. Some people believe that the thicker the wrap, the better, as it provides better freshness and prevents bacteria from invading. However, the truth is that the thickness of food cling film does not necessarily indicate its quality and efficacy, and over-reliance on thickness may have some negative effects.
Truth 1: Cling film thickness is not the deciding factor, barrier properties are more important.
For cling film, barrier performance is one of the key factors to measure its freshness. Although in general the thicker the film, the more difficult to tear, but not the thicker the better. If the cling film is too thick, it will become hard and difficult to fit the surface of the food when wrapping, and is prone to air bubbles and voids. As a result, air contact between the food and the outside world remains, leading to possible spoilage and bacterial contamination. Properly thin food cling film can better fit the food surface, reduce air bubbles and voids, and provide better freshness.
Truth 2, The quality of food cling film is not directly proportional to its thickness.
Quality refers to the material, manufacturing process and additives of the cling film itself, which have a direct impact on freshness. While certain quality cling film may be thicker in general, it does not mean that all cling film with a large thickness is of high quality. Some poor quality cling film may simply be thicker, ignoring the choice of materials and additives. This will lead to a decline in the film’s moisture resistance, transparency and heat resistance and other properties, so that the preservation effect deteriorates.
Truth 3: Excessively thick cling film may have too many additives, jeopardizing health and wasting resources.
In addition, over-reliance on thickness can also bring some negative effects. Some ultra-thick food cling film sold on the market may contain too many additives. These additives may release harmful substances when heated or in contact with food, posing potential risks to human health. In addition, excessively thick food cling film can be wasteful when used. Compared with thinner cling film, excessively thick cling film requires more materials and is difficult to recycle and reuse effectively. This is an issue that cannot be ignored in terms of environmental protection.
Conclusion
To summarize, choosing an appropriately thin cling film can better fit the surface of food. Focus on the quality of cling film, material, process and additives are more important. Avoid over-reliance on thickness and choose environmentally friendly products.
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