Plane passengers have been warned about bringing their own food onto planes for reasons that can cause “trauma” for other flyers.

Travel writer Alexandra Carlton, writing for Escape, said her friend recalled a story to her, with a voice “trembling with trauma” of a fellow passenger scoffing down sushi mid-flight.

Recalling her friend’s story, she wrote: “‘He held every roll in his hand and was high-dipping it in the soy sauce, mid-air, then throwing it down his throat and licking his fingers’.

“‘He was in the middle seat which made it even worse because he was subjecting two people to this hell’.”

The passenger said the ” gross torched salmon smell lingered from those plastic containers for the whole rest of the flight”.

A 2015 survey by Go Airport Express revealed that almost 50 percent of respondents said they felt it was rude to bring pungent food onto a plane.

Meanwhile, 12 percent said bringing your own food onto a plane should be banned altogether.

Other similar horror stories have been shared by users on Reddit.

One wrote: “Without thinking, I brought a chicken liver and onion sandwich on board a flight one time. Looking back I’m surprised I wasn’t killed by my fellow passengers.”

Another said: “A passenger next to me took out smelly salami cut up in tiny pieces and munched on it for the entire duration of the four-hour flight.”

But the writer said there are other ‘outside foods’ that are more acceptable to consume on an aircraft.

Carlton highlighted the Flight Centre website which said foods such as muesli bars, celery and carrot sticks and nuts are all “quality mid-flight snacks”.

The writer went on: “I’ll conclude with this astute observation from my still trembling friend, after his airborne sushi close ‘encounter. “Would you get in an Uber to drive an hour and eat three trays of sushi? No you would not. So don’t do it on planes. Be better’.”