How does PE Plastic Wrap ensure good sealing to prevent bacterial growth?

PE Plastic Wrap ensures good sealing through its unique physical and chemical properties, as well as the correct method of use, thereby effectively preventing bacterial growth. PE Plastic Wrap is made of polyethylene and has good flexibility and stretchability. This allows it to fit tightly to the surface of tableware or food of various shapes and sizes, forming an effective sealing barrier. The surface of PE Plastic Wrap has a certain stickiness, which can firmly adhere to the edge of tableware or containers, preventing air and moisture from entering the interior of the package, thereby maintaining the freshness and safety of food.
Before using PE Plastic Wrap, clean and dry the surface to be covered. The wet surface may contain moisture or grease, which will reduce the adhesion of the cling film, resulting in the cling film not being able to fit tightly, thus forming gaps or bubbles, allowing air, bacteria or moisture to enter, affecting the preservation quality of food. Dirty surfaces may contain microorganisms or residues, which will not only affect the hygiene and safety of food, but may also contaminate the cling film itself, and then cause secondary contamination to food during subsequent use. Therefore, it is recommended to use a clean cloth or paper towel to gently wipe the surface of the tableware or container to remove moisture, grease and impurities, ensure that the surface is dry and clean, and lay a solid foundation for the subsequent plastic wrap covering work.
Proper stretching of plastic wrap is the key to ensure that it fits the target surface tightly. Stretching plastic wrap can increase its surface area, making it better adaptable to objects of different shapes and sizes. However, stretching also needs to be mastered to a certain degree. Overstretching plastic wrap will cause it to become too thin, which is easy to break or tear during subsequent use, thus losing the sealing effect. Insufficient stretching may prevent the plastic wrap from completely fitting the target surface, leaving gaps or bubbles, which will also affect the sealing effect. Therefore, when stretching plastic wrap, the stretching strength should be appropriately adjusted according to the actual situation and the size of the object to be covered, to ensure that the plastic wrap is neither too thin nor too thick, and can fit the target surface tightly to form an effective sealing layer.
After the plastic wrap is covered, gently pressing along the edge can help eliminate bubbles or gaps between the plastic wrap and the target surface, further improving the sealing effect. By pressing, the plastic wrap can be more tightly adhered to the edge of the tableware or container, forming a solid barrier to prevent air, bacteria or moisture from entering the interior of the package. When pressing, pay attention to the moderate force to avoid excessive force that may cause the plastic wrap to be damaged or deformed. At the same time, it should also be ensured that the pressing is even, and no corners or edges are missed to ensure that the entire package has good sealing.
Although PE plastic wrap has good sealing at room temperature, it may deform or melt in a high temperature environment, which will affect its sealing effect. Therefore, PE plastic wrap should be avoided when heating food or ensure that it is away from heat sources. During storage, the sealing status of PE plastic wrap should be checked regularly. If the plastic wrap is found to be damaged, loose or discolored, it should be replaced with a new plastic wrap in time to ensure the hygiene and safety of the food.
PE plastic wrap can ensure good sealing through its material characteristics and correct use methods, effectively prevent bacterial growth, and thus protect the freshness and safety of food. However, during use, it is also necessary to pay attention to avoiding high temperature environments and regularly checking the sealing status.