Plastic water cups are very common daily necessities in life. Whether workers work, students read books, or white-collar workers go to work, they will bring a plastic water cup, but how to choose a good and safe plastic water cup? Should I choose a beautiful color or an expensive one?
Before choosing a plastic water cup, we must first understand the meaning of the numbers 1-7 surrounded by the triangle at the bottom of the water cup:
1—PET, polyethylene terephthalate, is generally used in mineral water plastic bottles and carbonated beverage bottles. It is not suitable for repeated use, as repeated use will produce carcinogens.
2-HDPE high-density polyethylene, generally used in medicines, plastic bottles for cleaning supplies, and toiletries bottles.
3—PVC polyvinyl chloride, used to make raincoats, plastic films, plastic boxes, etc. It has strong plasticity and can withstand temperature of 81 degrees. It is not recommended to store food.
4——PE polyethylene, commonly found in plastic wrap, high temperature will produce harmful substances.
5—PP polypropylene, commonly found in juice beverage bottles, microwave lunch boxes, with a melting point of up to 167 degrees, is the only plastic bottle that can be placed in a microwave oven.
6—PS polystyrene, commonly found in fast food boxes and instant noodle boxes.
7-PC other types, used in water bottles, space cups, plastic water cups, department stores usually use water cups of this material as gifts. Long-term use will produce bisphenol A.
Commonly found in mineral water bottles, it has low heat resistance and is not suitable for repeated use. Harmful substances will be produced during use. Plastic water cups of materials 5 and 7 are usually selected, but No. 7 plastic material representing PC is prone to produce bisphenol A after long-term use, so it is safest to choose No. 5 material representing PP. It has a melting point of up to 167 degrees and can be used to hold boiling water. It does not contain bisphenol A and will not produce bisphenol A during use. In addition, there is also a tritan plastic cup researched by Eastman, USA. Not only is the material crystal clear and has super resistance, it also does not contain bisphenol A, and it will not produce bisphenol during use. A.
Do you guys know? When choosing plastic water cups, PP and tritan plastic water cups are good choices, safe and secure!