Selection and maintenance of personal water cups. As we all know, the human body needs eight glasses of water a day to meet the body's metabolism, but do we use the right cup when consuming water? The following is a description of how to choose the correct mug factory.

Plastic cups: Plastic cups are popular with many people because of their changing shapes, bright colors, and are not afraid of being beaten. They are very suitable for outdoor users and office workers. However, plastic cups must be made of food-grade plastics, because plastics are polymer chemical materials. When plastic cups are filled with hot water or boiling water, the polymers can easily precipitate and dissolve in water, which is harmful to human health after drinking. And usually the bottom of the plastic product has a label about the material, the most common is a mineral water bottle, labeled as PET1, or some will be written as PETE. This shows that the plastic bottle is made of "polyethylene terephthalate" and cannot be used to hold hot water. It should not be used repeatedly. It should be recycled after opening.

Insulation cups: Insulation cups are generally made of stainless steel, which is durable, rust-proof and corrosion-resistant. However, stainless steel cups are alloy products and contain more heavy metal substances. If used improperly, these heavy metal substances are easily released and endanger health. Therefore, in daily use, be careful not to use stainless steel cups for acid drinks, such as juice, coffee, carbonated drinks; do not store soy sauce, vinegar, vegetable soup, tea, etc. for a long time. When washing stainless steel cups, do not use strong alkaline or strong oxidizing chemicals such as soda, bleaching powder, etc. These substances also easily react with stainless steel.