How to Distinguish the Quality of Plastic Water Cups in the Simplest Way?
There are many ways to identify plastic water cups, which can be summed up by smelling, touching and inspecting.
Get a new plastic water cup, open the lid and smell it with your nose. The lighter the smell of the cup means the better the quality of the cup. Good plastic materials such as Tritan can hardly smell any smell. If there is a pungent smell, it means that this water cup material must be unqualified and harmful to the human body.
Then touch it with your hands to check whether the surface of the water cup is smooth, whether the seams are neat, and whether there is a feeling of rowing. A good plastic water cup has a smooth appearance, and there is no tipping when touching the water cup anywhere.
The last is to watch. Check if there are any impurities or bubbles in the material of the water bottle. Lift up the water cup to see if the refraction of light by the water cup is uniform. The water cup has miscellaneous spots, indicating that there is suspicion of using recycled materials, and the bubbles indicate that the quality management has not been done during the processing.
If the water cup has obvious wavy lines against the light, it indicates that the production process of the water cup is rough.
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