There is an old saying, "Half-starved and half-full days are long." Of course, this statement is somewhat outdated, and most of us have long been happily out of the era when we need to count food stamps and stare at rice jars for dinner. As life becomes richer day by day, people have the conditions to try "luxury". China people pay attention to food and cooking, invitation-only banquets, wedding banquets, birthday banquets, and gatherings of various names ... Hotels have become a place for many rich people to vent their feelings. Because of this, the catering industry has developed rapidly. According to the data of the National Bureau of Statistics, from October to May this year, the retail sales of China's catering industry totaled 334.63 billion yuan, a net increase of 51.72 billion yuan year-on-year, an increase of 17.9%. In 2114, China's per capita catering consumption was 576 yuan, while Shanghai's per capita catering consumption was three times the national average, while Guangzhou's per capita catering consumption was as high as 4,143 yuan, more than seven times the national average. In some poor areas in the west, the annual income of a family may not reach this figure. However, behind this huge growth, there is also a huge waste. In 2114, the total consumption of catering industry in China exceeded 711 billion yuan, accounting for about 7% of the total GDP; In the same period, the total consumption of American catering industry was $376 billion, accounting for about 3% of the total GDP. Among them, China, as a developing country, has a high Engel's coefficient, but the reason of waste can not be ignored. "Mow the grain at noon, and sweat drips into the soil. Who knows that Chinese food on the plate is hard. " This used to be a poem often used for children's enlightenment. But now, many rich people have forgotten the essence of this poem that they have memorized since childhood. At present, the Chinese government puts forward that "the concept of advocating frugality, reasonable consumption and moderate consumption should be formed in the whole society". To really realize this, people need to start from the most basic "eating".