Thin Tin Box

This special substance smeared on the inside of the tinplate box is used to prevent the contents of the package from corroding the tinplate box, preventing the food from being contaminated on the wall, and better extending the storage time of the food.

We can clearly see on the edge of the food packaging iron box that the coating is not only to prevent corrosion, but also to protect the tinplate box from being scratched and rusted by external forces. And this coating can also add some beauty to the tinplate box.

Here's the key point: the substance applied is non-toxic, harmless, tasteless, with good adhesion, good adsorption, good flexibility and good corrosion resistance, and has excellent high-temperature resistance function. It will not attack harmful substances, lose its original luster and other functions when heated at high temperature.

Xiaobian once heated the eight treasures porridge of the iron box in the microwave oven. After heating, the inner coating of the iron box did not change at all! So the inner coating in the iron box is not resistant to high temperature as some people said. Of course, it is not recommended to do this. You still need to use special utensils to heat things.