Most of the products we buy in life are clearly marked with the expiration date, but as a kind of commodity packaging, do plastic packaging bags have a shelf life? The answer is yes.
1. The shelf life of plastic packaging bags is the shelf life of the product itself.
Most plastic packaging bags are reusable, but they are limited to secondary recycling and cannot be used to repackage the product, because plastic packaging bag manufacturers will also process plastic packaging bags in the process of producing plastic packaging bags. Aseptic processing itself is carried out, especially the requirements for food packaging bags are more stringent. After the packaging bags left by the plastic packaging bag manufacturers are used by the food manufacturers, they will also undergo secondary sterilization, so once the goods enter the market, they are used as food packaging bags. It is absolutely impossible to package food again, which is why plastic packaging bag manufacturers have always emphasized that plastic packaging bags also have a shelf life.
Second, plastic packaging bags will also undergo some qualitative changes over time.
We often find that some plastic packaging bags are particularly easy to break and break as soon as they are folded, or some plastic packaging bags are even stuck together and cannot be pulled apart, and the printing patterns on the surface of some plastic packaging bags have faded and changed in color. The phenomenon of light and so on is actually a manifestation of the deterioration of plastic packaging bags. In this case, we suggest that this kind of plastic packaging bag should not be used anymore, because this kind of plastic packaging bag can no longer protect the goods.
3. It is best to choose raw materials made of new materials for plastic packaging bags.
Some plastic packaging bags seem to have no problems on the surface, but because the raw materials are mixed with recycled materials, the safety of plastic packaging bags will be affected. The reason why we attribute this type of plastic packaging bag to a deteriorated bag is that the use of this kind of plastic packaging bag to package food has a very obvious impact on the shelf life of the food itself, and indirectly shortens the shelf life of the food.
Therefore, in the process of using plastic packaging bags, we must pay attention to using them as soon as possible and do not store them excessively.
Post time: Aug-27-2022