At present, as people pay more and more attention to fo […]
At present, as people pay more and more attention to food safety and health issues, plastic food container standards have received more and more attention as an important factor affecting food hygiene and safety. At present, the health and safety of food packaging materials have problems and defects that cannot be ignored.
Edible safety of plastic containers:
First look at the appearance of the package, check whether there is a "QS" mark on the product or packaging, see if the bottle wall is transparent and pure, generally the inferior plastic products are not cleanly washed, and the hair is sticky; try not to choose a cup with a brighter color, add color May be to cover up harmful impurities in recycled plastic or industrial grade materials.
Followed by smell, if there is a pungent smell, even if you do not unscrew the lid, you can smell it from the outside; then look at the hardness, good plastic container is thicker, hardness is good, the pressure will not be pressed by hand Excessive deformation, you can also fill the bottle with hot water, see if the bottle is deformed, whether there is odor, and repeatedly upside down to see if it is sealed.
In addition, when using a plastic container, apply hot water several times before use to remove impurities or harmful substances that may be generated from the bottle. When the ambient temperature is low, a small amount of hot water should be added for preheating to prevent the water cup from undergoing structural changes under severe temperature changes, and the mechanical properties are deteriorated, while the low temperature makes the plastic brittle.
As China's AS raw material resin for standard materials for plastic containers does not have corresponding national standards, some enterprises have not tested and quality control the purchased raw materials. AS plastic bottles made of unqualified raw materials are prone to acrylonitrile monomers. Excessive.