When flying, you are allowed to carry food such as bread, as long as the weight and volume of the items you bring do not exceed the flight standards. "Carry-on luggage" refers to the luggage and small articles carried by passengers with the consent of public air transport enterprises. The relevant provisions of the Civil Aviation Safety Inspection Rules are the weight of articles that can be carried with you free of charge. The weight limit for first class and business class passengers is 10kg, and that for economy class passengers is 5kg.

Extended data:

According to the relevant regulations of China's civil aviation, the articles that passengers can carry on the plane are as follows:

1. The weight limit of free articles carried by each passenger in first class and business class is 10 kg, and the weight limit of free articles carried by each passenger in economy class is 5 kg.

2. Passengers with first-class and business-class air tickets can carry two items with them; Passengers with economy class tickets can only carry one item with them. The length, width and height of each personal belongings shall not exceed 55 cm, 40 cm and 20 cm respectively.

3, food is not prohibited items, as long as the weight and volume do not exceed the standard, you can take it on the plane.

References:

Baidu Encyclopedia _ China Civil Aviation Passenger Baggage Transportation Rules Official Website-China Civil Aviation Rules