People in addition to a variety of vacuum color printing bags, these bags inexpensive, innovative, slowly replaced the bamboo basket in the hearts of people in the position, but these beautiful bags are not purely natural pollution-free, and some Which is toxic, long-term use will harm the health
To pay attention to the green outside the bag font, this font marks the food bag, if not, is poor. Then look at the bag there is no obvious impurities, whether there is a pungent taste, if any, is inferior.
Bag with a fire about, then there have been a lot of black smoke also exudes a pungent odor, indicating that the quality is not good
The color of the bag also determines the quality of the bag, the quality of the transparent bag is good, the milky white and the dark bag is of poor quality and should not be used to hold food
Put the bag into the water inside, high-quality bags will float on top of the water, and the color will not fall off. And poor packaging bags which add a lot of chemical raw materials which it will not pass the degree of sinking, and there will be fading phenomenon.
