Firstly, you can smell it. The smell of cling film can be smelled after opening the package. The real quality cling film is colorless and odorless. Once the product has a peculiar smell, it means that the quality is unqualified.

Secondly, observe the color, the higher the transparency of the cling film, the better the quality. The color is yellowish, it is made from scrap recycling, and the quality is poor.

Finally, look at the elasticity of the plastic wrap, and pull the cling film to test. The quality of the plastic wrap that is easy to break is poor. The higher the toughness, the better the quality of the cling film.