The packaging labeling of plastic bottles has been a topic that many people have repeated, and plastic bottle manufacturers also attach great importance to it. However, labeling has caused some panic among people because there are rumors circulating in society that "plastic bottles can cause cancer". Although some posts have replied that the claim that plastic bottles cause cancer is not true, it only proves that the repeated use of plastic bottles is harmful to health. However, because the previous statement had a great impact, there are still many people who are scared and fearful. In fact, the bottom number of plastic bottles is only for the convenience of recycling and has little to do with people's health. It only reflects the material of plastic bottles, and then classifies and recycles them. Due to various claims, regardless of the reason, Plastic bottle manufacturers still have strict regulations on the digital labeling of the bottom of plastic bottles, including the clear labeling of the purpose of the plastic bottles when they leave the factory.

Products such as milk bottles, water bottles, tableware, and cutting boards with clear food use purposes may not have food labeling on their packaging labels or instructions. Products that are easily confused with non food products, such as non composite films and composite films, should be labeled with the words "for food use" on their packaging or labels. Internal calling rather than external sales of products, such as products produced through internal connections in the workshop or products that have not left the workshop, may not be marked with the "food use" logo. Products that are called from other places or packaged outside the factory must be marked on the outer packaging. In summary, it's like hanging one's name on a dementia patient's body, adding packaging labels to plastic bottles, just for the convenience of everyone getting to know them.