Food packaging shows a trend of diversification, and the types of packaging materials are increasing day by day. Food packaging provides convenience for people's life to some extent. However, food safety accidents caused by packaging materials occur from time to time.

Therefore, it is very necessary to pay attention to and improve the safety of food packaging materials. Food packaging materials refer to the products used for packaging and containing food or food additives and the coatings that directly contact food or food additives. It can be seen that the quality of food packaging materials directly affects food safety. So, from the perspective of the main packaging materials, what impact do they have on food safety?

1、 Plastic packaging materials for food

Plastic is the most widely used food packaging material. The unsafe hidden danger lies in the migration of monomers, formaldehyde, toluene and other compounds in the resin. In addition, the use of additives such as stabilizers, colorants, plasticizers, etc. added in the production process makes some compounds migrate to food, affecting food safety.

2、 Food paper packaging materials

Paper is the oldest and most traditional packaging material. In the process of papermaking, it is necessary to add chemicals such as anti-seepage agent, bleach, dye, etc. to the pulp, and some chemicals will migrate to food. From the paper products, the anti mildew agent or formaldehyde used in processing can also be dissolved.

3、 Food metal packaging materials

Aluminum foil, iron foil and tinned cans are often used for metal packaging. When using aluminum foil, it is rarely used alone, and it is mostly used together with plastic film. The surface of the metal can is mostly coated with plastic. Therefore, some compounds in heavy metals and additives migrate to food, affecting food safety.

4、 Packaging materials for food glass containers

Glass is also a melt of inorganic substances, and its main component is sio2-na2o. Because of the different types of glass, there are dissolved substances from raw materials.

In addition, the coloring of food packaging materials requires the use of metal salts. If heavy metals migrate to food, food safety will also be affected, and there will be unsafe hidden dangers.

To do a good job in food safety packaging, it is necessary to establish sound food packaging safety regulations and standards, develop new packaging materials and packaging technologies, and improve the corresponding detection system, so as to reduce the safety problems caused by food packaging materials and give play to the most important function of food packaging - protecting food.