Which plastic bottle is harmful to health

At present, plastic bottles have become the most common items in citizens' homes. Many people use these plastic bottles for bulk wine, rice, and oil, and some even use it to heat food. However, most people may not pay attention to the numbers under the bottle. In fact, these numbers represent different meanings. Therefore, the use of plastic bottles must not be blind.
The number "1" represents the plastic bottles for drinking mineral water, etc. The bottom of the plastic bottle of edible oil is the number "2". The number "3" indicates the number of the plastic raincoat umbrellas. The numbers on the plastic wrap and other packaging are "4". ";" And the microwave marked the bottom of the tableware is "5." Only plastic products marked with the number "5" can be heated. Other heating will produce toxic substances and endanger health. However, many consumers have expressed that they will not pay attention to the figures at the bottom of plastic bottles when they purchase them, but rely on their experience. This practice is really worrying.