Nowadays, we drink water in plastic cups and eat in plastic lunch boxes... Lightweight and portable plastic containers have become one of the indispensable daily necessities in our daily lives. However, few people pay attention to the difference in materials of these plastic containers.

Usually there is a triangle logo with an arrow on the bottom of the beverage bottle. There is a number in this triangle logo. The difference of the number represents the difference of the plastic material.

The number at the bottom of a general mineral water bottle or carbonated drink bottle is "1", which is only suitable for warm or cold drinks. When it is filled with high-temperature liquid or heated to above 70°C, it is easy to deform, and at the same time, substances harmful to the human body will melt. After 10 months of repeated use, such plastic containers may release carcinogens and endanger human health. Therefore, throw away the beverage bottle when it is used up, and don't use it as a water cup or as a storage container to hold other items, so as not to cause health problems.

The microwave lunch box is a plastic container marked "5". This is the only plastic box that can be placed in a microwave oven and can be reused after cleaning. Need special attention, some microwave lunch boxes, the box is indeed marked "5", but the lid is a plastic product marked "1", because it cannot withstand high temperatures, it cannot be placed in the microwave together with the box. Before putting it in the microwave oven for heating, pay attention to the label. If the lid is a "1" plastic product, remove the lid before putting it in the microwave.

Some bowls of instant noodle boxes and fast food boxes are marked as "6". Although this material is heat-resistant and cold-resistant, it cannot be placed in a microwave oven to avoid the release of chemical substances due to excessive temperature. In addition, this kind of plastic cannot be used to contain strong acids (such as orange juice) and strong alkaline substances, because it will decompose polystyrene, which is not good for the human body, and is likely to cause cancer. Therefore, when packing food in a restaurant, it is better to let the food cool before putting it in a lunch box.

The plastic marked "2" is mostly used in cleaning products and bath products, and can be used repeatedly, but because the residue that is not easy to clean becomes a breeding ground for bacteria, it is better not to use it repeatedly for too long.

The plastic marked "3" is rarely used for food packaging. Some businessmen who are eager to make small profits use this to produce beverage bottles. If you see that the beverage bottle is made of plastic marked "3", please do not buy it.

Plastics marked "4" are mostly used in the production of cling film, plastic film, etc. Its heat resistance is not strong. Usually, the cling film will melt when exposed to a high temperature above 110 ℃, leaving some plastic that cannot be decomposed by the human body. Preparation, and wrap the food with plastic wrap to heat, the fat in the food can easily dissolve the harmful substances in the wrap. For this reason, the wrapped wrap should be removed before the food is put into the microwave.

Plastic containers may seem ordinary, but they actually contain a wealth of knowledge. Paying attention to distinguishing different types of plastic products is undoubtedly a manifestation of being responsible for your own health. More and more fashionable people in pursuit of health have begun to return to the "iron rice bowl" era after they understand the principles of using different plastic containers-stay away from plastic cups, plastic pots, resin bowls and beverage bottles, and use iron as much as possible for eating and drinking. Product container. This way of life is a healthy and environmentally friendly choice.