there are regulations.

As early as the end of 2111, the Ministry of Railways announced the "Quality Standard for EMU Train Service (Provisional)" to the public, which clearly required that passenger trains should be supplied with mineral water below 2 yuan and box lunch below RMB 15, and the supply should not be interrupted.

The "Catering Management" of the Railway Passenger Transport Service Quality Standard, which came into effect on October 1, 2115, clearly stipulates that the high-speed rail "has a variety of pre-packaged drinking water, lunch boxes and other travel drinks at high, medium and low prices, and 2 yuan has a continuous supply of pre-packaged drinking water and 15 yuan lunch boxes."

Extended information

The Ministry of Railways issued the "Notice on Extensively Carrying out the Activities of" Serving Passengers and Striving for Excellence "in the Passenger Transport Window of the whole railway", which pointed out that all railway bureaus strive to realize localized catering in areas where conditions permit.

Optimize the meal structure. Pre-packaged box lunch is selected for EMU meals, and the meal structure should be mainly cold chain. After the perishable food is purchased or caught from the place of origin, every link of the perishable food is always in the low temperature environment necessary for the product from the processing, storage, transportation, distribution and retail to the hands of consumers, so as to ensure the food quality and safety.

In addition, the Ministry of Railways suggested that microwave ovens can be used to heat the onboard food for passengers at noon or at night. Ordinary passenger trains give full play to the on-site production conditions of dining cars, implement standardized recipes, and promote the boarding of finished products, semi-finished products and clean vegetables.

each bureau should establish a list of train goods, formulate reasonable prices according to the principle of matching quality and price, announce them to passengers, urge them to accept supervision, and prohibit the sale of "three noes" and fake and shoddy goods. To ensure that passenger trains have mineral water below 2 yuan, lunch boxes below 15 yuan, etc., and shall not be cut off.

according to the safety requirements, the self-contained food can't be heated in the microwave oven of the bullet train at present, which is mainly because the hot things in the microwave oven are easy to burst, so it can't be opened for use at present.