How much food packaging knows

[China Packaging Network News] In daily life, the close relationship between food packaging and food has long been recognized by people. Whether it is shopping malls, supermarkets or every family, beautifully designed, practical and convenient food packaging can be found everywhere. In fact, food packaging is like the close-fitting clothing of foods. It not only plays a role in protecting food from contamination and damage caused by external factors, but also facilitates the storage, transportation and sale of food. In most cases, the unique appearance of food packaging is also intended to attract the attention of consumers, causing consumers to purchase desire. Food packaging has become an integral part of food in modern society.

So, what is food packaging material? Food packaging materials and containers refer to packaging, paper for food, bamboo, metal, enamel, ceramics, plastics, rubber, natural fibers, chemical fibers, glass products, and coatings that come in contact with food. Internationally, all food contact materials and products such as food packaging, food containers, and auxiliary materials, equipment, and tools used in food processing are collectively referred to as food contact materials. At present, there are many kinds of food containers and packaging materials that China is allowed to use. There are mainly the following seven types:

1, plastic products: such as plastic bottles, disposable plastic lunch boxes, disposable plastic cups, etc.;

2, rubber products (including natural rubber, synthetic rubber): such as teats, pressure cooker seals, etc.;

3, ceramics, enamel products: such as ceramic tableware, enamel cups, etc.;

4, aluminum, stainless steel, iron products: such as aluminum pot, aluminum foil, stainless steel pot, iron pot, etc.;

5, glass products: such as glass tableware, glass cups, etc.;

6, paper products: such as disposable cups, food packaging cartons, etc.;

7, composite film products: such as composite film bags.

Food packaging materials of different materials have their own characteristics, advantages and disadvantages due to their different materials. For example, plastics are cheap and lightweight, metals are not easily broken, and paper and plant fibers are easily degraded. However, no matter which type of food container or packaging material you choose, you cannot ignore the fundamental principles that may cause food contamination and thus pose a hazard to human health. Different food containers or packaging products have different safety hazards. The main problem of metal kitchen utensils and tableware such as aluminum, stainless steel, iron and other products is that during the cooking process, due to the quality problems of the kitchen utensils or improper operation, the heavy metals nickel, chromium, cadmium and lead are migrated to the food. The main problem of ceramic products is the excessive migration of lead and cadmium, while plant products such as natural fibers and paper products are mainly subject to microbial contamination or excessive sulfur dioxide.

In order to ensure the safety of food packaging materials, China has not only formulated strict national food safety standards for each type of food packaging material and its products, but also formulated corresponding standards for the use of processing aids for food packaging materials. The scope of use and the amount of each processing aid are strictly limited. As long as the production enterprise strictly selects the food packaging materials and processing auxiliaries permitted by China according to the national standards and conducts production and processing in accordance with the good production practices, its products will meet the requirements of the national standards and will not bring health to consumers. To harm.