21. What Happens to Unused Food After a Flight?
This decision is up to every airline, but in general, it’s thrown in the dump. We already have enough questions about the food, so it’s probably best to know that this is its fate. Most airplane grub is mass produced by airline-contracted catering services.
One travel catering expert has said that although these provisions claim to be freshly prepared, the majority of plane food is prepared between 12 and 72 hours ahead of time and can be chilled for up to five days according to international standards.