It's definitely not good to drink water from every plastic cup. Because plastic cups are more or less harmful to the body, after all, they are high-molecular polymers and will not be beneficial to the body. But drinking cold water or cold drinks won't do much harm. If it is hot water or hot drink, it will react with plastic cups to a certain extent, which may produce substances harmful to human body, so try not to drink hot water from plastic cups.

The first choice for drinking water should be a glass. Don't think that glasses are just transparent and beautiful. Among all the cups made of materials, the glass is the healthiest. If you often drink cold boiled water in plastic cups, it will not produce harmful substances to the human body. If you often drink hot water in plastic cups, it will produce substances harmful to human body, because plastic products will produce chemical reactions when heated, and long-term drinking will be bad for your health and affect your health.