“Also the steel pots from coffee makers are changed after every flight by catering.”

Another airport worker and social media user, @ifixplanes, added: “How do you know the water tanks are ‘never’ cleaned? I’m with aircraft maintenance and we have very strict task cards that are assigned to every aircraft.”

User @allynagle259 commented: “I don’t understand why the water thing is an issue. When was the last time you cleaned your pipes/tank at home?”

In terms of food, flight attendant Amber, who is also based in the US, commented that “airline meals are extremely unhealthy” and urged passengers to avoid them.