"No.2" HDPE cleaning products and bath products are not thoroughly cleaned, so it is recommended not to recycle them.
"No.3" PVC is rarely used in food packaging at present, so it is best not to buy it.
"No.4" LDPE cling film, plastic film, etc. Plastic wrap is wrapped on the surface of food and put into the microwave oven for use.
"No.5" PP microwave lunch box and fresh-keeping box generally use PP special for microwave oven (polypropylene, which can resist high temperature 120℃ and low temperature -20℃). For cost reasons, lids are generally not used. When put into the microwave oven, the cover must be removed before use. Because all kinds of bayonet fresh-keeping boxes use transparent PP instead of special PP, they can't be put into the microwave oven.
"No.6" PS bowl is filled with instant noodle boxes and fast food boxes. Don't cook the bowl of instant noodles in the microwave.
Other categories of "No.7" PCs: kettles, cups, milk bottles and PC glue release bisphenol A when heated.
See Baidu Encyclopedia-Plastics for details.
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