1. Look at the material
The first thing to look at when purchasing plastic water cups is the material of the water cup. The material of the water cup determines the quality of the water cup. Generally speaking, silicone resin is better, followed by polypropylene particles (pp), which are resistant to high temperature and high temperature. Low temperature resistance is very strong, the former temperature range is -40 degrees — 200 degrees, the latter is -20 degrees — 120 degrees.

2. Look at the use
The body of the water cup will be marked with a purpose, so the water cup must be selected for “food use”. Try not to buy and use cups marked with other purposes, otherwise it will have adverse effects on health. It is also recommended to buy plastic cups that are not marked for use.

3. Smell
A good plastic water cup, even if it smells new, will not have a very special odor, but some inferior plastic cups can smell the pungent inferior plastic or rubber smell as soon as you get close, indicating that the quality of the cup is very poor, try not to use it. Buy.

4. Look at the production license sign
Before the production of water cups, a special agency needs to issue a license, so the bottle body of the water cup will be marked with the “QS” production license mark, although the mark does not determine the quality of the cup, but the water cup with this mark can be considered for purchase. And the color of the logo should be pure and clear in pattern, and beware of counterfeit and shoddy products.

5. Look at the manufacturer
The water cups produced by regular manufacturers will clearly indicate 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.