What is the passenger food chain?

The Passenger Food Chain is the hierarchical structure that determines who gets what food on an airplane. At the top of the chain are first class passengers, followed by business class, and then economy passengers. The food options for each class of passengers vary, with first class passengers typically receiving a wider range of higher quality food than business and economy passengers. The passenger food chain can also be affected by other factors, such as meal restrictions or preferences, as well as the airline's budget and catering policies.