In fact, in recent years, the phenomenon of food waste in China has not only occurred on campus: half of the dishes that some restaurants have pushed have quietly disappeared; Few restaurants remind consumers to "do what they can" when ordering; When foreigners dine in China, they often lament the "luxury" of China people's dining tables; In some places, chronic diseases such as the minimum consumption of catering have recurred; Traditional bad habits are hard to change. In many local customs, if all the dishes on the table are eaten up, it will appear that they are not well served, and the waste phenomenon in large-scale dinner activities such as weddings, funerals and weddings is still very prominent ...

Cheng Shengkui, a team of the Institute of Geographical Sciences and Resources of Chinese Academy of Sciences, has conducted food waste research for six years. The research group investigated and analyzed 366 catering establishments, nearly 8,111 table consumption samples and 8,211 questionnaires including restaurants and canteens in Beijing, Shanghai, Chengdu and Lhasa, and found that the phenomenon of food waste in urban catering industry in China was serious: the survey data from 2113 to 2115 showed that the amount of food waste in catering industry in China was about 17 million to 18 million tons per year, equivalent to the annual rations of 31 million to 51 million people.

"Food waste means the ineffective consumption of a large number of resources such as water, energy, land and means of production, and the increase of additional environmental loads such as water pollution, soil pollution and greenhouse gas emissions." Liu Xiaojie, Ph.D., Institute of Geographical Resources, Chinese Academy of Sciences, said that this kind of waste far exceeds what we can see intuitively.