Air hostess explains why cabin crew 'wince' when a passenger orders a Diet Coke

An air hostess has revealed why you should never order a Diet Coke while flying on a commercial aircraft - because it foams up too much.

The flight attendant, named Jet, explained cabin crew "wince" every time a passenger orders one because staff have to wait for the "bubbles to fall" before the drink can be served, reports the MEN.

Writing on a blog, they said: "Soft drinks foam up a lot more when poured out of a can, and the worst culprit for this is Diet Coke – I literally have to sit and wait for the bubbles to fall before I can continue pouring."

Cabin crew say their least favourite drink to serve is Diet Coke because it fizzes up too much (Getty Images/iStockphoto)

They continued: "If all three passengers ask for Diet Coke I'll often get them started, take another three drink orders, serve those, and then finish the Diet Cokes."

In a video demonstrating how Diet Coke can be difficult to pour, the cabin crew said: "What you can't see is that the Diet Coke doesn't come out of the can when flipped upside down until you lift it up and tilt it slightly.

"This is because the air pressure is keeping the Coke in the can. It makes pouring the Diet Coke very controllable and reduces the chances of spilling or overflow."

So, if you want to be kind to cabin crew, it may be worth ordering something else, such as tea or coffee. They'll probably thank you for it.