(1) Waxed paper cups are filled with wax, and can only be filled with cold drinks, but not with oil, because oil can dissolve wax. Wax will melt at about 40℃, and it contains carcinogenic polycyclic aromatic hydrocarbons.

(2) Paper-plastic cups are stacked together. If there is mold outside, it will inevitably pollute the inside. Followed by the outer printing ink, irritating, especially the taste of ink, the taste is likely to be substandard. Many ink components contain benzene and toluene, and benzene is recognized as a carcinogen.

(3) Paper cups made of fiber pulp are coated with adhesive film, and the heat-resistant temperature is within 100℃. If the cup is thinner, the thermal resistance will even be less than 70 degrees. However, the oven temperature for baking noodle soup is at least 220 degrees. If the paper cup can't stand the high temperature, the dissolved plastic poison will do harm to human body.

2. There are three kinds of raw materials for disposable paper cups, namely:

(1) recycled polyethylene;

(2) white cardboard and opaque wax;

(3) Fiber pulp.

Extended data:

Discrimination of inferior paper cups that are not environmentally friendly:

1, the inner membrane of the cup should not be uneven;

Disposable paper cups are prone to water leakage due to poor spraying process.

In an ideal paper cup, the inner coating will be uniform, and the wax film or plastic film will be smooth. With the help of light, observing the coating of the inner film of the paper cup from a suitable angle can be simply judged with the naked eye.

2. It is forbidden to print any pattern outside the cup15mm;

When drinking water, the lower lip will contact the outside of the cup, and the ink printed on the disposable paper cup is easy to fall off, making the ink unsafe.

Many times, you can't see the QS logo, production information and production date on the paper cup. But if the paper cups come from regular manufacturers, at least in terms of printing, they are definitely up to standard and can be distinguished at a glance.

Baidu encyclopedia-disposable paper cups