Bag Type---Preservation Bag
Fresh-keeping bags mainly refer to bags made of food plastic wrap, which are mainly used to store vegetables, fruits, grains, cooked food and other foods, and are widely used in daily life. Fresh-keeping bags are divided into polyethylene (PE), polyvinyl chloride (PVC), polyvinylidene chloride (PVDC) and other types according to the production material.
related information
PE and PVDC fresh-keeping bags are relatively safe. PE is mainly used for the packaging of fruits, vegetables, etc., and PVDC is mainly used for the packaging of some cooked food, ham, etc. Although PVC fresh-keeping bags are widely used in the outer packaging of food and vegetables, they have certain potential harm to the human body. The harm mainly comes from two aspects: one is the residual amount of vinyl chloride monomer in the product (the safety limit of vinyl chloride to the human body is less than 1mg/kg), and the other is the type and content of processing aids used in the process. There are two substances in PVC with carcinogenic potential, one is VCM (vinyl chloride monomer), the other is DEHA (plasticizer), if the composition of VCM is in the range of 1PPM (one part per million), it is non-toxic , If it exceeds the standard, there is the possibility of carcinogenicity; while the plasticizer will be released at high temperature and be harmful to the human body. Therefore, the General Administration of Quality Supervision, Inspection and Quarantine in 2005 strictly prohibited the use of plasticizers by enterprises producing PVC, and prohibited the use of PVC fresh-keeping bags to package meat, cooked food, tofu and other foods that can be eaten directly.
Choose a Ziploc bag
When choosing a fresh-keeping bag, pay attention to the following points:
1. Pay attention to the material marked on the product: polyethylene bags (PE) are widely used in food packaging; polypropylene bags (PP) have high transparency and are mainly used for the packaging of bread, small food, etc.; polyvinyl chloride bags (PVC) can also be used. It is used for the packaging of perishable food such as vegetables and fruits, but it cannot be used for the packaging of greasy food, nor can it be used for heating in microwave ovens.
2. When heating food in a microwave oven, use a fresh-keeping bag with "Microwave Special" (such as Miaojie, Xu Baoxian).
3. Fresh-keeping bags should be used for refrigerated and frozen food in the refrigerator instead of ordinary plastic bags. The special process and raw materials of the fresh-keeping bag or film have good ventilation and fresh-keeping performance, while the ordinary plastic bag will rot and deteriorate if the ordinary plastic bag is used for a long time, and the purpose of fresh-keeping cannot be achieved.
4. It is best to use a colorless and transparent fresh-keeping bag.
Related events
It is forbidden to directly wrap cooked food in PVC plastic wrap
October 26, 2005 Sohu News
According to Xinhua News Agency, the General Administration of Quality Supervision, Inspection and Quarantine held a press conference on the 25th to announce the results of special inspections on imported and domestic food preservation films.
Liu Zhaobin, director of the Regulations Department of the General Administration of Quality Supervision, Inspection and Quarantine, said that the General Administration of Quality Supervision, Inspection and Quarantine conducted a special national supervision and random inspection of 44 kinds of PVC food cling film. and the requirements published by the International Codex Alimentarius Commission (CAC) in 1991. PE and PVDC conform to national standards and are safe, so consumers can use them with confidence. At the same time, it was found that some PVC plastic wraps mainly used for outer packaging contained di(2-ethylhexyl) adipate (DEHA) plasticizers that were not allowed to be used by relevant national standards, and the plastic wraps containing DEHA encountered grease. Or at high temperature (over 100 degrees Celsius), plasticizers are easily released, which will have an impact on health after entering the human body with food.
It is forbidden to wrap meat and cooked food with PVC plastic wrap
In view of the latest special supervision and spot check that my country's PVC food cling film contains DEHA plasticizer, the General Administration of Quality Supervision, Inspection and Quarantine will take measures such as prohibiting enterprises from using DEHA in the production of PVC cling film to ensure the health of consumers.
Liu Zhaobin, a spokesman for the General Administration of Quality Supervision, Inspection and Quarantine, said on the 25th that the General Administration of Quality Supervision, Inspection and Quarantine will issue an announcement to prohibit the import and export of PVC food cling film containing DEHA and other non-compliance with mandatory national standards, or the content of vinyl chloride monomer exceeding the standard; Use DEHA in the production of PVC plastic wrap; enterprises are prohibited from distributing PVC food plastic wrap containing DEHA or vinyl chloride monomer content exceeding the standard, and it is prohibited to use PVC plastic wrap to directly package meat, cooked food and oily foods.
Illegal production of PVC cling film can be investigated for criminal responsibility
Liu Zhaobin expressed his responsibilities and said that in the next step, the General Administration of Quality Supervision, Inspection and Quarantine will strengthen the supervision of the import and export of food cling film products, as well as the production, sales and use links. The first is to strengthen the inspection and supervision of import and export of PVC food cling film, implement "batch-by-batch" inspection, and prohibit the import and export of products that contain DEHA plasticizer and vinyl chloride monomer content exceeding the standard. The second is to further conduct a comprehensive investigation and compulsory inspection of product quality for enterprises producing food preservatives across the country. If it is found that DEHA is used as a plasticizer to produce PVC food fresh-keeping film, it will be ordered to stop production immediately, sealed up on the spot, and ordered to stop the factory sales, recall the product that has already left the factory, and be severely punished according to law; if the circumstances are serious, it will be sent to judicial organs according to law. Be held criminally responsible. The third is to require food cling film manufacturers to indicate the material and scope of application of the product on the outer packaging of the product. Anything that is not clearly stated as required will be prohibited from sale. Enterprises that have been sold are ordered to recall. The fourth is to require the distribution enterprises to conduct self-inspection, and stop selling and using the products that do not indicate the words "DEHA-free", or do not expressly indicate that they can be heated by microwave ovens.