What do the numbers and recycling triangle on plastic containers mean?

What do the numbers on plastic containers mean?

Surprisingly, the numbers on plastic containers can tell us aboutthe type of container and its harmlessness to the human body. Also, the recycling triangle indicates that it is recyclable.

1 Polyethylene Terephthalate (PETE) = PET

2 High-Density Polyethylene (HDPE) = Plastic HDPE / Vinyl HDPE
 
-> 1 and 2 are containers that are safe from toxicity, so they can be used to store food and beverages for a long time. They are types of plastic that can be safely used.
Numbers 1 and 2 are easy to recycle.

 
4 Low-Density Polyethylene (LDPE) = Plastic LDPE / Vinyl LDPE

5 Polypropylene (PP) = Plastic PP / Vinyl PP

-> 4 and 5 are containers that are somewhat safe from toxicity. However, long-term storage is not recommended, so it is advisable to consume them as soon as possible after they are manufactured. Numbers 3 to 7 are difficult to recycle.
 
 
3 Polyvinyl Chloride (PVC) = Plastic PVC / Vinyl PVC

6 Polystyrene (PS) = Plastic PS / Vinyl PS

7 Other (OTHER) = Plastic OTHER / Vinyl OTHER

-> Numbers 3, 6, and 7 are highly toxic substances and are unsuitable for storing food or beverages. They are mainly used for shampoo bottles, plastic storage boxes, etc. However, if these numbers are included in food containers, it is best to avoid purchasing them or discard those in use.
 

Also, please do not use plastic containers in the microwave. Plastic containers labeled as microwave-safe simply mean that the container itself will not deform. When using in the microwave, substances that leach out of the container can harm the human body through food.
 
Thank you.