Experts suggest that the degradable tableware can be distinguished by several methods of "one look, two smell, three tear":

At first glance, we must first see whether there is a QS logo and number on the lunch box; secondly, we must also see whether the surface of the lunch box is smooth and whether there are impurities or black spots. Generally speaking, transparent plastic lunch boxes are made of pure polypropylene (PP), which has a relatively high safety factor; brightly colored lunch boxes may use waste plastic, so the darker the color, the more unsafe.

The second touch is to feel the strength of the lunch box. The lunch box produced with recycled waste or a large amount of industrial-grade calcium carbonate and talcum powder is generally poor in strength, and it will break if you tear it lightly.

The third smell is to smell the peculiar smell of the lunch box, and the qualified lunch box cannot smell the smell.

The characteristics of the "black lunch box" can be summed up as a six-sentence jingle: the hand is soft and soft, it will break if you tear it lightly, it will cause a pungent smell, it will easily leak when heated, it will have paraffin marks when it is folded, and it will sink when it is torn into water. . As long as you remember the jingle above, you can easily distinguish whether the disposable lunch box is qualified.