Recently, the network set off a wave of “55 degrees cup” craze, which claims to be able to boiling water quickly cooled, cool water quickly warmed “drinking water magic” by netizens. However, the Shanghai Quality Supervision Bureau for this type of product material safety assessment found that there are 3 batches of products cup body polypropylene (PP) material decolorization phenomenon, laying a safety hazard. Here to remind everyone, long-term use of such cups drinking water fear of health risks, such as the use of the quilt found to have discoloration phenomenon, it is recommended to immediately stop using. 1, “55 degrees cup” is mainly sold in the e-commerce platform, advertising claims to be able to boiling water quickly cooled to 55 ℃. After using the heat absorbed from the boiling water, then the cool water into 55 ℃ water. This transformation process itself is not very healthy for the body, if used again with its drinking water, it will cause a burden on the body and cause disease! 2, this cup involves polypropylene (PP) material (cup lid, cup body), stainless steel (cup liner) and silicone material (cup gasket), these materials are harmful to the human body, drinking cups preferred should be glass, should avoid harmful substances in the cup caused by the infringement! 3, the sampling of three batches of products of polypropylene (PP) material cup body decolorization test failed, does not meet the “food packaging polypropylene molded products health standards” requirements; if the “55 degrees cup” liner welding leaks, laminated liquid into the liner, the damage to the body will be great! 4, polypropylene (PP) material cup decolorization test is positive mainly due to the cup body using a poor stability of coloring agents or processing process errors, resulting in the use of the product, coloring agents are easy to migrate and thus be ingested by the human body. Therefore, the cup decolorization will lay a hidden danger to the safety of the product. In addition to extra attention in the choice of cups, here I would like to remind everyone that in daily life people should pay special attention to drinking water “four to”, “four do not”, that is, to drink water regularly, not only when thirsty think of drinking water; to drink warm water with salt, do not drink ice water; to drink more water. Do not drink ice water; to drink more boiled water, do not drink raw water; to drink fresh boiled water, do not drink the water placed too long.