Can the hottest food packaging be healthy

2022-08-08
  • Detail

Food packaging, whether it can package health

food safety is a major issue related to the health of the people, which is increasingly concerned by the Chinese government and the masses. When it comes to food safety, there is a problem that cannot be ignored, that is, food packaging

there are many kinds of food packaging

people buy a wide variety of packaged food from shopping malls. Candy and ice cream packaged in paper; Biscuits, puffed food, milk powder, quick-frozen food and pickles packed in plastic bags; Beverages, wines, condiments, yogurt and jelly in plastic bottles (boxes) or glass bottles; Metal cans of beer, cans. Bulk foods such as fried goods and cooked meat products, as well as on-site prepared foods purchased from morning markets and farmers' markets, such as steamed buns, pancakes, fried dough sticks, also need to be simply packaged. However, how many people think that if there is a problem with food packaging, it will also have a negative impact on the safety of food, and then affect the health of consumers

in the street, I saw that the owner of a breakfast stall used ultra-thin plastic bags to pack freshly fried oil cakes and handed them to customers. All customers have no objection to this. Ask Aunt Wang, who has visited the stall before, not only to ensure the degree and lubrication of the table top. "Do you think it's good to use this plastic bag for food?" Aunt Wang replied, "I buy breakfast like this every day. It's nothing. It's very good." "Do you know that food in ultra-thin plastic bags may have adverse effects on health?" "Really? Why didn't I feel it?"

not everything can hold food

he Nanzhi, vice president of China food and packaging machinery industry association, said that there are indeed some problems in food packaging in China at present. He Nanzhi told me something like this: a businessman once asked where he could buy the cheapest machinery for making sausage blow molding casings. He Nanzhi explained to him that there are cheap ones, but the effect of oxygen and bacteria isolation of the film is too poor to be used as food packaging. The businessman said it was all right. Anyway, it was sold to small food stores in the countryside, so it was not so particular. He Nanzhi said that this is just an example. Some illegal manufacturers are still trying to find ways to package raw materials. In order to maximize profits, they simply ignore the relevant national regulations. The biaxial stretching industry will ensure the health of consumers when the production capacity of ordinary packaging film is seriously redundant and has not been resolved

the state has formulated quite strict regulations on food packaging. The definition of food containers and packaging materials in the food hygiene law is that paper, bamboo, wood, metal, enamel, ceramics, plastics, rubber, natural fiber, chemical fiber, glass used for packaging and containing food. Customers' demand for the company's iron phosphate, lithium iron phosphate products has also significantly increased, such as glass products and coatings in contact with food. Three articles in the food hygiene law are formulated for food packaging. The state also has health management measures formulated for plastic products and raw materials for food, base paper for food packaging, rubber products for food, epoxy phenolic coating on the inner wall of food cans, etc. He Nanzhi said that the relevant provisions of the state cannot be said to be imperfect, but some food packaging production enterprises do not implement them, causing hidden dangers to the health of consumers. The purpose of food packaging is to protect food from the influence of chemical, physical and microbial factors, ensure that the nutritional composition and inherent quality of food remain unchanged, and then ensure the health of consumers. In addition, packaging provides many convenient conditions for the transportation, storage, sale and use of food. Scientific food packaging can prolong the storage period of food and reduce the deterioration of food. If the packaging machinery and raw materials are not used in a standardized way, the production of qualified food packaging cannot be guaranteed. In addition, in order to reduce costs, some food sellers use packaging materials that cannot be used as food packaging to serve food for customers. For example, ultra-thin plastic bags are made of recycled waste plastics, which have not been disinfected in the production process, and may be added with substances harmful to human body during production, so they cannot be used for food. But now many people still use ultra-thin plastic bags for food. This phenomenon is most common in morning markets and farmers' markets

ink is not a small problem

he Nanzhi said that many food packages are printed with colorful exquisite patterns, but few people know that most of the inks printed with patterns contain benzene, which is harmful to human body. Benzene is an aromatic hydrocarbon, which is the product of coal tar distillation or petroleum cracking. Benzene can cause chronic poisoning, mainly causing damage to the nervous system and hematopoietic system, manifested as headache, dizziness, insomnia, continuous leucopenia, thrombocytopenia and bleeding tendency. These damages occur slowly, will not appear in the short term, and are easy to be ignored by consumers. Therefore, ink cannot directly contact food. Now most food packaging bags are printed in this way: after the pattern is printed on the plastic bag, a layer of plastic is attached to it, that is, the ink is sealed between the two layers of plastic, which will not pollute the food. But consumers still need to be vigilant. Plastic bags that can wipe the patterns off by hand are unqualified

ideal food packaging is harmless to the human environment

benzene in the ink mentioned above is a highly volatile substance, which is easily released into the atmosphere during the printing process, causing pollution to the environment. He Nanzhi said that there are also disposable plastic products that are not easy to degrade, such as foam lunch boxes, which are also very harmful to the environment. This is what people often call "white pollution". The foaming material used in the foaming lunch box itself is toxic, and the foaming agent used is Freon. People with a little common sense know that Freon will destroy the ozone layer of the atmosphere, so it is banned by some industries. In the production of foam lunch boxes, freon will continue to volatilize; When the finished lunch box is stored, freon is still volatilizing; The residual Freon will volatilize when the food above 60 ℃ is put in the lunch box. It can be said that foamed lunch boxes are harmful to human body and the environment. Therefore, the country has long not allowed the use of foam lunch boxes. The ideal food packaging should be harmless to human body and the environment. Developed countries require that packaging should conform to the principles of green materials, reusability and degradability; It has also become a trend to replace benzene containing inks with alcohol soluble inks. At present, biodegradable plastics have been used in the field of food packaging production in China, and food containers made of potato and corn starch have also appeared

supervision should be strengthened

he Nanzhi said that for packaged food, it is difficult for people to find unsafe problems in packaging because they do not have detection means. Therefore, relevant government departments should strengthen the supervision of enterprises. This is also the lack of food safety supervision in China at present. No matter how many and strict the relevant national laws and regulations are, enterprises cannot protect the interests of the people if they do not implement them. For the unconscious business operators, we must strictly supervise them. At present, the biggest problem of food packaging pollution is township enterprises, and the rural market is the place with the weakest supervision. Therefore, the work of the regulatory authorities must be in-depth. In addition, it is also very important to improve the professional quality of law enforcement supervisors. If the supervisors and law enforcers are not knowledgeable or familiar with the laws and regulations, they do not know what to check and how to check. Even if these supervisors and law enforcers with insufficient professional literacy go deep into the enterprise, they cannot play a real role in supervision

source: China Medical News

Copyright © 2011 JIN SHI