Plastic is everywhere in our life, with the controversial plastic bottle in recent years, grade plastics has become quite complicated, we should also hold a serious attitude towards the plastic, because plastic is good, but the security problems have plastic in life has become we cannot ignore, at the bottom plastic bottles, containers and so on can often see a number, then what is this figure represents the plastic grade?
Plastic is mainly composed of plastic particles processing, processing process is relatively complicated, we compare the common plastic grade is the No. 1, No. 1 is mainly represented by PET material bottles of mineral water and carbonated bottles, the bottle can not be heated, the heat will be deformed, but also will produce harmful substances on the human body, and cancer.
2 plastic for cleaning supplies, bath supplies and so on are all use number 2 bottles, but it is best not to use again and again, so as not to produce bacteria.
Plastic No. 3 is very rarely used. It is rarely used in food packaging. This plastic can cause carcinogens at high temperatures and cause disease in newborns, so this container is rarely used in foods.
No. 4 is mainly used for plastic wrap and plastic film. As far as possible, the fresh-keeping film should not enter the microwave oven.
No. 5 mainly microwave oven heating plastic box, many microwave oven lunch box cover is not 5 plastic particles, so don’t put the box, put together heating.
No. 6 is mainly used in bowls, instant noodles, snack boxes, but it can not be put into the microwave oven, nor can it be put into orange juice and other strong alkaline substances.
No. 7 is mainly used in bottles, kettles, water bottles and bottles.