Check the color: When choosing paper cups, don't just look at how white they are. Some manufacturers add a lot of fluorescent whitening agents to make the cups appear whiter.
Check the firmness: Never buy paper cups that are soft and flimsy! Such cups are prone to leaking. High-quality paper cups should have thick, sturdy walls so they won't deform when filled with water or beverages. Experts recommend that high-quality paper cups should not leak for 72 hours, while poor-quality ones will leak after half an hour.
Smell the odor: Some paper cups are printed with colorful patterns and words. These inks contain benzene and toluene, which are harmful to health. Especially with damp paper cups, the ink inside may affect the inner layer, so never use damp paper cups. It's best to choose paper cups with no or minimal ink printing on the outer layer.
Distinguish between hot and cold cups: Disposable paper cups are generally divided into cold drink cups and hot drink cups. They each have their purpose, so don't confuse them. Cold drink cups are for cold drinks, and hot drink cups are for hot drinks; otherwise, it may have a negative impact on your health.
