When using plastic cups-especially disposable ones-it is important to consider safety risks related to chemical migration and physical performance.
Test results indicate that no microplastic migration was detected in cups made of materials such as PS, PET, or PLA after they were soaked in boiling water for two hours.
Common issues leading to non-compliance in plastic cups include problems with labeling, sealing, and impact resistance; poor sealing can result in leaks and scalds, while poor impact resistance makes the cups prone to cracking.
Plastic cups have numerous tiny surface pores that can harbor dirt and bacteria, necessitating thorough cleaning.
Some cups marketed as "degradable" contain non-degradable polypropylene (PP) plastic, preventing them from fully breaking down; this constitutes false advertising.
When purchasing plastic cups, follow the "look, smell, and squeeze" rule: **Look** for an appearance free of impurities and clear, complete labeling (checking for the QS mark, production license number, and standards GB 4806.7 and QB/T 4049); **Smell** to ensure there are no off-odors; and **Squeeze** to ensure the cup does not deform easily. Avoid purchasing polycarbonate (PC) cups for infants and young children, and check the materials of lid gaskets and straws to avoid polyvinyl chloride (PVC). Clean and disinfect cups before use and wash them daily during use-especially after holding fruit juice or carbonated beverages. Avoid using hard brushes that could cause scratches, check the seal, adhere to temperature guidelines, avoid reusing disposable cups for extended periods, and replace cups that show signs of aging.