General knowledge to identify toxic food packaging bags

Food plastic bags are often used in people's lives, but they must also be used when they are used. Some plastic bags are poisonous and cannot be used to store food directly. Below we will teach you several ways to identify it!

First, with the eye observation method

The non-toxic plastic bag is white, transparent or slightly transparent, and the texture is uniform. The toxic plastic bag is colored or white, but it has poor transparency, is relatively turbid, and the plastic surface is unevenly stretched with small particles.

Second, listen with your ears

When the ear was listening to shake the plastic bag vigorously, a crisp sound was shown to be a non-toxic plastic bag; a small, boring sound was a toxic plastic bag.

Third, touch the hand

Hand touching the surface of the plastic bag is smooth and non-toxic; sticky, astringent, and waxy are poisonous.

Fourth, use your nose to smell

Snuffy non-toxic plastic bags are odorless; there are irritating odors or abnormal tastes that are toxic.

Fifth, the submergence test method

The submerged test puts the plastic bag into the water and pushes it by hand to the bottom of the water. After waiting a moment, the surface of the plastic bag is a non-toxic plastic packaging bag. The submerged plastic bag is a toxic plastic packaging bag.

Six, combustion method

Nontoxic plastic bag burning test flammable, flame tip yellow, partially blue, burning like a candle tears, there is a paraffin; toxic plastic bag is not easy to burn, extinguished from the fire, the flame tip is yellow, the bottom Green, softened and brushed.