Food has always been preferred by people, and food packaging is more important.

1. Protect food and extend the shelf life of food

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

During the entire circulation process, food has to go through handling, loading and unloading, transportation and storage, which can easily cause damage to the appearance of the food. After the food is packaged inside and outside, the food can be well protected to avoid damage.

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

The quality of food will change and deteriorate during the entire circulation process.

The food itself has certain nutrients and moisture, which are the basic conditions for the production and reproduction of bacteria, mold, yeast, etc. When the food is stored at a temperature suitable for them to multiply, it will spoil the food. If the food is packaged aseptically or processed by high-temperature sterilization and refrigeration after packaging, it will prevent the occurrence of food spoilage and extend the shelf life of the food.

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

Moreover, when food is in circulation, when it is directly irradiated by sunlight and light, and at high temperatures, it is easy to cause food to oxidize, change color, and change flavor. For example, use the corresponding vacuum packaging, inflatable packaging and other technologies and corresponding packaging. material. It can also effectively extend the shelf life of packaged foods.

2 Packaged food is convenient for circulation

Some packaging is a container for food circulation. Such as bottled alcohol, milk powder in beverage canning yard, etc., these transferred bottles, cans and bags are containers as well as a transfer tool for food circulation and sales. It brings great convenience to food circulation

3. Increase the variety of food, which is convenient for consumers

Some convenience foods have local flavors and can only be circulated after being packaged. To enable exchanges of famous and high-quality foods from all over the world and increase people's daily food types.

In addition, fresh foods, such as quick-frozen dumplings, fast food, etc., can be conveniently eaten after packaging and technical preservation.

4. Prevent food contamination and facilitate the use of special packaging technology for cooking food

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

5. Promote the rationality and planning of food circulation

Some fresh foods are perishable and difficult to transport, such as fruits and aquatic products. Various cans are made in the production area, which can reduce waste, reduce transportation costs, and promote the rationality and planning of food circulation. .

6. Promote food competition and increase food sales