When you next fly, it might be a wise idea to avoid the in-flight meal - and while you're at it, don't drink the tea and coffee either.
That's the advice given by Allison Hope, a former airline industry employee, to New York website Refinery29 - and she has revealed a lot more about the often unsanitary conditions in the air.
She recommends avoiding the in-flight meal unless it's served in a sealed bag, and also warned that the water used for coffee and tea comes from tanks that are hard to clean and often contaminated with bacteria.
LSG Sky Chefs, one of the biggest companies providing meals to airlines, has been hit with several health violations and "the conditions under which it prepares food are often less than savoury", she said.
However, she also pointed out that not all airlines are alike - and international carriers like Emirates and Singapore are known for their good-quality food.