What is the role of High Temperature Cooking Film in food safety?

1. Structure and characteristics of high temperature cooking film
High Temperature Cooking Film is a composite material designed for high temperature cooking food, usually composed of multiple layers of materials. The outer layer is made of high-strength polyester film (such as PET), which has good protection and reinforcement; the middle layer is aluminum foil, which provides light protection, moisture protection and air leakage prevention functions; the inner layer uses polyolefin film (such as polypropylene film) to ensure heat sealing and food contact safety. This multi-layer structure design enables the high temperature cooking film to maintain structural stability under high temperature environment, effectively block oxygen and moisture, and extend the shelf life of food.

The material selection of high temperature cooking film is also crucial. PET, PA (nylon), PP (polypropylene) and other materials are widely used in food packaging because of their high temperature resistance, corrosion resistance and excellent barrier properties. These materials can not only withstand the high temperature cooking environment, but also effectively prevent bacterial contamination and ensure food safety.

2. Sterilization and preservation function
High temperature cooking film has a significant sterilization effect during food processing. Studies have shown that high-temperature cooking film can kill all bacteria at a temperature of 120-135°C, thereby extending the shelf life of food. This sterilization function is particularly suitable for foods that require high-temperature processing, such as meat and soy products. The high barrier properties of high-temperature cooking film can effectively prevent oxygen and moisture from entering the package, slow down the oxidation and deterioration of food, and maintain the freshness and nutritional value of food.

3. Food safety and health protection
The use of high-temperature cooking film greatly reduces the risk of contamination during food processing and storage. In the production and processing of meat products, high-temperature and high-pressure sterilization processes can effectively isolate pathogens and spoilage bacteria, reducing the possibility of food spoilage. The materials of high-temperature cooking film usually meet food safety standards and will not release harmful substances in high-temperature environments, thereby protecting the health of consumers.

It should be noted that some types of cling film (such as PE cling film) may decompose and release harmful substances at high temperatures and are not recommended for high-temperature cooking. In contrast, high-temperature cooking film is a safer choice due to its high-temperature resistance.

4. Environmental protection and sustainability
With the improvement of environmental awareness, the market of high-temperature cooking film is developing towards higher performance and more environmental protection. New materials such as EVOH (ethylene-vinyl alcohol copolymer) are widely used in high-temperature cooking film, which not only improves the barrier performance of packaging, but also reduces the impact on the environment. The recyclability and biodegradability of high-temperature cooking film are also gradually improving, further promoting the sustainable development of the food packaging industry.

5. Wide range of applications
High-temperature cooking film is widely used in a variety of food packaging fields due to its excellent performance.
Soft cans: Soft cans can be sterilized by high-temperature cooking, which can effectively extend the shelf life of food and maintain the original flavor and nutrition of food.
Vacuum packaging: High-temperature cooking film is suitable for vacuum packaging technology, which can further improve the preservation effect of food.
Ready-to-eat food: In the packaging of ready-to-eat foods such as instant noodles and sausages, high-temperature cooking film can ensure the safety and freshness of food when stored at room temperature.

6. Technical challenges and future development directions
Although high-temperature cooking film plays an important role in food safety, there are still some technical challenges. The adhesive solvents left between the two layers of some high-temperature cooking films may enter the food through the packaging bag, causing pollution. Some materials may release harmful substances at high temperatures, affecting food safety. In the future, with the development of new materials and new technologies, the performance of high-temperature cooking films will be further improved. The application of nano-microporous structures can achieve better breathability and oil resistance, while the introduction of biodegradable materials can help reduce environmental pollution.