Why do breakfast sausages bring plastic?

The plastic of breakfast sausage is plastic casing, which is usually used as packaging material. Good barrier, it is a kind of casing that can be cooked and sterilized at high temperature. As long as it's not naked flame, normal cooking at 100 degree is completely fine, and no toxin will be produced.

The plastic shell itself is made of high-temperature blow-molded raw materials, which are food-grade and harmless. Don't bake with open fire when eating. Those casings are usually edible. Please don't eat it if it is wrapped in plastic. It is indeed harmful to heat plastic casings with naked flame, but if cooked, even if the temperature reaches 12 1℃, it will not produce toxins.