People's demands for food are becoming increasingly high. In the past, it was only enough to satisfy their hunger, but today it requires a combination of color, aroma, and taste. From waking up early to staying up late in a day, a large amount of food needs to be consumed. As a result, plastic bags are everywhere. Is it toxic to use plastic bags to store food? How to choose safe and healthy plastic bags for food?

How to identify inferior plastic bags?

1. Most plastic bags used for food are transparent plastic bags, which means they do not have obvious colors. We often see vendors in the vegetable market using colored plastic bags such as red and black to store fruits, vegetables, cooked food, and meat. In fact, most of these colored plastic bags are made by adding waste and recycled materials, which do not meet food requirements.

Even if the plastic bag is transparent, it should be placed in a well lit place to check for impurities. If you look closely at a low-quality plastic bag under a light, you can see black dots on top of the bag, which are unevenly distributed, some larger and some smaller. If you look closely, you can also see cracks on inferior plastic bags. Poor quality plastic bags are usually used to hold garbage and cannot hold food, fruits, vegetables, and meat.

3. Identify by smelling the smell of plastic bags. Due to the fact that low-quality plastic bags are made from recycled materials, sniffing inside them can cause a nauseating sensation. These plastic bags are usually toxic and cannot be used to hold food and vegetables. Good plastic bags have no odor.

4. By touching with your hand, you can feel that high-quality plastic bags have a smooth, dense, and flat surface, while low-quality plastic bags have a rough surface. When touched with your hand, you can feel that the surface is uneven, sticky, and astringent.

5. Throw the plastic bag into the water. If the plastic bag sinks to the bottom of the water, it means that the plastic bag is of poor quality. If the plastic bag floats on the surface of the water, it means that the quality of the plastic bag is relatively good. Plastic bags made from new materials have certain strength, hardness, and toughness, and will not break easily when torn. During the production process of inferior plastic bags, a lot of additives and waste recycling materials need to be added. These additives and waste recycling materials not only have a strong odor, but also make the plastic bags brittle and fragile, which can be easily torn by hand.

6. Identify by listening to the sound of plastic bags. Hold the plastic bag in your hand and shake it vigorously. If the plastic bag makes a crisp sound, it indicates that it is of poor quality, while high-quality plastic bags make a buzzing sound when shaken.

In the production of low-quality plastic bags, because the materials themselves contain various auxiliaries, dyes, heavy metals, once the food is loaded into the hot food, such as steamed stuffed buns, Noodles in soup, under the influence of temperature, the harmful substances in the bags will migrate to the food. These recycled plastics contain severely excessive carcinogens. After food packaged in these plastic bags is eaten, harmful substances in the plastic bags will migrate to the human body and pose a threat to health.