Paper Cup Test:

1. Look: When selecting disposable paper cups, don't just look at the white color of the cups. Don't think that the whiter the color is, the more sanitary it is. Some cup manufacturers add a lot of Optical brightener to make the cups look whiter. Once these harmful substances enter the human body, they can become potential harmful factors. Experts suggest that citizens should take a photo under the light when selecting paper cups. If the paper cup appears blue under the fluorescent light, it indicates that the fluorescent agent exceeds the standard and consumers should use it with caution.

2. Pinch: The cup body is soft and not firm, be careful not to leak water. In addition, it is necessary to choose paper cups with thick and stiff walls. Paper cups with low body hardness can be very soft to pinch, and when poured into water or beverages, they will deform severely when held, or even cannot be held, affecting their use. Experts point out that high-quality paper cups can generally hold water for 72 hours without leakage, while those with poor quality will leak in half an hour.

3. Smell: The color of the cup wall is fancy, be careful of ink poisoning. Paper cups are often stacked together, and if they are damp or contaminated, mold will inevitably form. Therefore, paper cups that are damp must not be used. In addition, some paper cups will be printed with colorful patterns and words. When the cups are stacked together, the ink on the outside of the cups will inevitably affect the inner layer of the cups it wraps around. The ink contains benzene and toluene, which is harmful to health. Therefore, it is best to purchase paper cups with no ink on the outer layer or less printing.

4. Use: To distinguish between cold cups and hot cups, they each have their own duties. The expert finally pointed out that the disposable paper cups we usually use can be divided into two types: cold drink cups and hot drink cups, each with their own functions. Once "misaligned", it may have an impact on consumers' health.