1. Industrial calcium carbonate
In order to reduce the cost of raw materials, manufacturers use a large amount of inorganic mineral powder as fillers in the processing of food plastic packaging. Calcium carbonate is one of the most prominent ones. However, in order to reduce costs, some manufacturers arbitrarily increase the use of calcium carbonate, and the filling ratio is even up to 70%.
Some advantages of calcium carbonate in the plastic processing industry. As we all know, the normal intake of calcium carbonate does not pose a threat to the human body, and it can even supplement calcium. But "excessive calcium carbonate" in food plastic packaging is not a good thing.
2. Plasticizer
As an important class of chemical product additives, plasticizers can be legally used for industrial purposes and are widely present in food packaging, cosmetics, medical equipment and environmental water bodies. Phthalates (PAEs) are the most commonly used plasticizers for plastic products. They are widely used in plastic products to enhance their flexibility and make them easy to process.
But on the other hand, it also has physiological toxicity such as damage to reproductive function, carcinogenicity, teratogenicity and mutagenicity.
Tests show that as the heating time and power increase, the amount of other substances in the plastic container that migrate to the food will increase. From the time the store, which pursues efficiency, pours the freshly baked food into the container to the time you open the steaming hot takeaway, the plasticizers are quietly migrating in places you can't see.
Because the boiling point of oil easily exceeds the heat resistance limit of plastic, chemical substances such as oil, sugar in food and plasticizers in lunch boxes are prone to chemical reactions, causing toxic substances to migrate and cause damage to the human body.
