1 According to the query of "China Food Safety News", with the adjustment and reform of national economic policies, China's food industry developed rapidly in the 1980s, and people's awareness of food safety was still relatively weak. At that time, food safety risks in China were mainly manifested in food safety and hygiene issues, especially food poisoning.

2. With the deepening of reform and opening up, a large number of individual and private economies have entered the food processing industry and catering industry, and the channels of food production and operation have become increasingly diversified and complicated, and the factors and opportunities of food pollution have increased, resulting in an increasing number of food poisoning accidents. The most typical case is the outbreak of hepatitis A caused by eating "bacteria-carrying" subcrenata in Shanghai in 1988.