CCTV news: I have drunk a lot of mineral water and beverages, and used many kinds of cups, but have you ever noticed the triangle sign on the bottom of the bottle? Which cups release toxic substances when exposed to high temperatures?

The bottom of our drinking cup and mineral water bottle has a triangle with an arrow, and there is a number inside the triangle, generally 1-7, the number is different, representing the practical range of the material and the difference in toxicity.

A picture to understand the secret of the bottom of the plastic bottle

These 4 sentences, you must see!

The first sentence: No. 3, 6, 7, be careful when using, but can not be heated repeatedly.

Second sentence: No. 5 can be used for microwave oven heating, when buying microwave oven heating box, be sure to see whether there is a "5" at the bottom.

Third sentence: No. 2 Although can be reused after cleaning, but these containers are usually not good to clean, will become a hotbed of bacteria. Therefore, it is best not to recycle them.

The fourth sentence: No. 1 is our most common mineral water bottle, heat resistance is only 70 бу C, heating is easy to deform, there are harmful substances melt out. So give children water do not repeatedly use mineral water bottles.

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