Bottom Label Of Paper Cup

Understanding the number identification at the bottom of disposable paper cups and understanding the meaning of each number at the bottom of different cups, you don't have to worry about the hazards of these disposable paper cups.
"1" - PET (polyethylene terephthalate), which can produce carcinogens after 10 months of use.
"2" - HDPE (high-density polyethylene), not easy to clean and prone to bacterial growth.
"3" - PVC (polyvinyl chloride), which is prone to producing carcinogens when exposed to high temperatures and fats.
LDPE (Low Density Polyethylene) is prone to producing harmful substances at high temperatures.
"5" - PP (polypropylene), a special material for microwave lunch boxes.
"6" - PS (polystyrene), heat-resistant and cold resistant, cannot be used for microwaves.
"7" - PC and other types, used to make baby bottles, space cups, and space bottles. However, this material of water cups can easily release toxic substances such as bisphenol A at high temperatures, which is harmful to the human body. Do not heat this water cup and do not expose it to sunlight.