1. Look at the material
Generally speaking, the silicone resin is better, followed by polypropylene particles (PP), this kind of material has strong high temperature and low temperature resistance, the former temperature resistance range is -40 degrees---200 degrees, the latter is -20 degrees--- 120 degrees.
2. Look at the use
The body of the cup will be marked with a purpose, so the cup should choose "for food", and try not to buy and use the cup marked with other purposes, otherwise it will have an adverse impact on health, and it is also recommended to buy a plastic cup without marking the use.
3. Smell the smell
A good plastic water cup, even if it smells new, will not have a very special smell, but some inferior plastic cups, as soon as you get close, you can smell a pungent inferior plastic smell or rubber smell, indicating that the cup is of poor quality, try not to buy.
4. Look at the production license mark
Before the production of the cup, a special agency needs to issue a license, so the bottle of the cup will be marked with the "QS" production license mark, although the mark does not determine the quality of the cup, but the cup with this mark can be considered for purchase. And the color of the logo should be pure, the pattern should be clear, beware of counterfeit and shoddy.
5. Look at the manufacturer
The water cups produced by regular manufacturers will be clearly marked with the specific manufacturer, production address, distributor, specific contact information, etc., while the above information of inferior water cups is often ambiguous, or there is no similar information at all.
