What is the function of food packaging

Food packaging is very important.

1. Protect food and extend the shelf life of food

(1) Protect the appearance quality of food and produce certain economic benefits.

In the whole circulation process, food must be handled, loaded and unloaded, transported and stored, which is easy to cause damage to the appearance quality of food. Food can be well protected from damage after being packaged inside and outside.

(2) Protect the original quality of food and extend the shelf life of food.

Food quality will change and deteriorate in the whole circulation process.

The food itself has certain nutrients and moisture, which is the basic condition for the production and reproduction of bacteria, mold, yeast, etc. When the food is stored at a temperature suitable for their reproduction, the food will deteriorate. If the food is aseptic packaged or processed by high-temperature sterilization and refrigeration after packaging, it will prevent the occurrence of food corruption and extend the shelf life of the food.

At the same time, the food itself has a certain amount of water. When the content of these water changes, it will lead to the change or deterioration of the food flavor. If the corresponding moisture-proof packaging technology is adopted, the above phenomena can be prevented and the shelf life of food can be effectively extended.

Moreover, when the food is in circulation, directly exposed to sunlight and light, and at high temperatures, it is easy to cause oxidation, discoloration, and taste change of the food. For example, the use of corresponding vacuum packaging, aluminum foil packaging, inflatable packaging and other technologies and corresponding packaging materials can also effectively extend the shelf life of packaged food.

2. Packaged food is convenient for circulation.

Some packages are containers for food circulation. Such as bottled liquor, milk powder in the beverage canning field, etc. These bottles, cans and bags are not only packaging JL devices, but also transfer tools for food circulation and sales. It brings great convenience to food circulation.

3. Increase the variety of convenient food, which is convenient for consumers and has local flavor. It can only be circulated after being packaged, so that famous and high-quality food from all over the country can be exchanged and people can increase the variety of daily food.

Moreover, fresh food, such as quick-frozen dumplings, packaged meals and preservation technology, can be convenient for eating.

4. Prevent food pollution. Convenient cooked food shall adopt special packaging technology

When the food is in circulation, it should be in contact with the container and human hands, which is easy to pollute the food. The packaged food can avoid this phenomenon, which is conducive to the health of consumers.

5. Rationality and planning of food circulation

Some fresh foods are perishable and not easy to be transported far away, such as fruits and aquatic products. Canning at the origin can reduce waste, reduce transportation costs, and promote the rationality and planning of food circulation.

6. Promote the competition and sales of food.