As one of the important positions of prevention and control, it is particularly important to improve the food safety traceability system, especially for cold chain food, how to accurately trace the source is the most important.

It is understood that in order to comprehensively strengthen the prevention and control of cold-chain foods, Zhejiang requires imported cold-chain foods to be labeled with cold-chain food traceability codes, so as to achieve accurate traceability of cold-chain foods in high-incidence countries and regions through food traceability blockchain technology and ensure the quality and safety of cold-chain foods.

With the rapid development of China's economy and the continuous improvement of people's living standards, imported food has gradually become an important part of the table of ordinary people in China.

according to relevant data, at present, more than 57% of consumers spend more than 11% on imported food.

It is understood that there are many kinds of imported foods in China, including imported fruits, imported dairy products, imported drinks, imported meat, imported cold-chain foods and so on, to meet the needs of different consumers.

This year, due to the impact of special events, the impact of meat processing enterprises in Europe and America, and the detection of defective products in imported cold-chain foods in many places in China, many consumers in China are worried about the quality and safety of imported foods and their cold-chain transportation.

Therefore, Beijing, Henan, Binzhou, Hefei, Xuzhou, Shaanxi and many other provinces and cities continue to carry out special inspections on imported frozen foods, comprehensively investigate food safety risks and effectively protect the safety of the masses.

In recent days, in order to further plug the loopholes, prevent the virus from spreading to livestock and poultry meat, aquatic products and their outer packaging transported by cold chain, and ensure that there is no dead end in prevention and control, Zhejiang Province, relying on Zhejiang cold chain system, requires to strengthen the accurate traceability of imported cold chain foods, especially those from countries and regions with high epidemic situation. For cold chain foods imported after May 1, 2121, it is required that cold chain food traceability codes must be affixed to the outer packaging of products, and food producers and operators are encouraged to assign codes and scan them.

The food traceability code is mainly a two-dimensional code label that records the original production data of raw materials, such as production date, food expiration date, country of origin, producer and other information. Each batch of imported cold chain food will have a traceability code.

Although the food traceability code is small, it contains important information related to cold chain food, because it records all the key information of this batch of imported cold chain food from production to table, and consumers can know the past lives of the product by scanning.

It is understood that there are three kinds of food traceability technologies at present, including RFID radio frequency technology, QR code, barcode and product batch information.

RFID radio frequency technology mainly affixes a logo with a chip on the product package, which can automatically collect and read relevant information, and the product flow direction can be recorded on the chip.

barcode plus product batch information is a common food traceability technology.

and the QR code can be scanned to find product-related information, including production bases, processing enterprises and distribution enterprises.

Zhejiang cold chain system is mainly based on blockchain technology, taking food enterprises and agricultural products wholesale markets as the first stop to enter Zhejiang supply chain, and then coding and scanning the cold chain food, so as to realize closed-loop traceability management from the first stop of the supply chain to the products in the consumption link, and fully grasp the flow direction of the cold chain food supply chain.

consumers can directly know the product information of the cold chain food by scanning the traceability code, including the export country or region, certificate of origin, production date, inspection and quarantine information of imported products and so on.

With the upgrading of food consumption, the diversification of product demand, the support of open policy and the continuous improvement of trade facilitation measures, the consumption scale of imported food in China has increased rapidly, and more and more imported food (including frozen and refrigerated food) is constantly enriching the dining tables of China residents.

However, under the influence of special events in the world this year, the food traceability blockchain technology will play an important role in tracing and accurately locating the cold chain food flow in Zhejiang, and quickly and properly disposing it.