Balanced nutrition and affordable price. Intermediate students are in the growth and development period, need to consume enough nutrients to support the development of the body and learning, therefore, they pay more attention to the demand for catering consumption of nutritional balance, hoping to be able to dietary intake of sufficient protein, carbohydrates, fat, vitamins and minerals and other nutrients, intermediate students of the economic capacity is relatively weak, so they are catering consumption of the demand also includes the price is affordable. . They want to be able to purchase cost-effective food with limited financial means. For middle school students, they also want to be able to purchase healthy and safe food to avoid the harm caused by food safety problems to the body.