Application and characteristics of PVC fresh-keeping film in food preservation

1. Introduction

Food preservation is an important link to ensure food safety and extend its shelf life. As one of the important fresh-keeping tools, PVC fresh-keeping film is widely used in household and commercial fields. In this paper, the characteristics of PVC fresh-keeping film in food preservation are analyzed in detail.

Basic overview of 2. PVC cling film

PVC cling film is a kind of polyvinyl chloride (PVC) as the main raw material production of plastic film. It has excellent shrinkage, transparency and water resistance, and can effectively protect food from the adverse effects of the external environment.

Application Characteristics of 3. PVC Fresh-keeping Film in Food Preservation

1. Excellent water retention performance: PVC cling film has good water retention capacity, which can lock the water inside the food and prevent the water from evaporating, thereby maintaining the freshness and taste of the food.
2. strong shrinkage: PVC cling film has good shrinkage, can close to the surface of food, forming a protective film, isolated from the outside air and microbial invasion.
3. Good temperature resistance: PVC cling film can be used in a wide temperature range, both in the refrigerated environment to maintain performance, can also be used at room temperature.
4. Excellent oil resistance: For food containing oil, PVC cling film can effectively prevent oil seepage and keep food clean.
5. High safety: PVC cling film undergoes strict quality control during the production process to ensure food safety and hygiene. At the same time, PVC cling film has stable chemical properties and will not release harmful substances.
Environmental protection and sustainability: With the development of technology, environmentally friendly PVC cling film is gradually popularized, and its degradable performance effectively reduces environmental pollution.
7. Diversified uses: PVC cling film is suitable for the preservation of various foods, such as vegetables, fruits, meat, seafood, etc., and can be used for the preservation and storage of kitchen supplies.

4. operation convenience

PVC cling film is easy to use and operate, and can easily wrap food to form a tight protective layer. In addition, PVC cling film has good stretchability and strength, which is convenient for users to cut and use according to their needs.

Comparison of 5. and other fresh-keeping materials

Compared with PE cling film, PVC cling film has better temperature resistance and oil resistance, and is more suitable for foods containing oil. In addition, the cost of PVC cling film is relatively low and more economical. However, PVC cling film is not easy to degrade after use, which has a certain impact on the environment. Therefore, environmentally friendly PVC cling film is the future development trend.

6. considerations

Although PVC cling film has many advantages, it is still necessary to pay attention to the following points when using it:

1. Avoid high temperature use: Although PVC cling film has temperature resistance, it may release harmful substances at high temperatures, so it should be avoided in high temperature environments such as microwave ovens.
2. Pay attention to food safety: use PVC fresh-keeping film produced by regular manufacturers to ensure food safety and hygiene.
3. Environmental issues: Try to choose environmentally friendly PVC cling film to reduce the impact on the environment.

7. Conclusion

In general, PVC cling film has many advantages in the field of food preservation, such as strong water retention, good shrinkage, strong temperature resistance, high oil resistance and so on. However, it is still necessary to pay attention to food safety and environmental protection when using. With the development of technology, environmentally friendly PVC cling film will gradually become the mainstream of the market, making greater contributions to food safety and environmental protection.