Flight attendants are increasingly taking to social media to regale the public with fascinating tales from their high-flying careers.

And in a startling revelation that has garnered widespread attention online, a Ukrainian flight attendant has divulged some of the secrets of her trade to her 17,100-strong Instagram audience who eagerly lap up stories from her life in the skies.

Adriana Kinch recently posted a reel that set tongues wagging as she delved into the luxurious world of business class indulgences.

In the viral clip, Adriana is seen brandishing a bottle of champagne aboard a flight. The accompanying text, which teased an imminent secret reveal, read: “Today I will tell you a secret..”

The footage cuts to a shot of her pouring champagne down the sink while visibly cringing at the camera, bringing a sense of drama to the proceedings.

Her caption cleared the suspense, as she wrote: “Everyone wanted to know… what champagne is served on board in Business class. Of course it’s Moet and Chandon and Veuve Clicquot Yellow Label Brut, always freshly opened and bubbly champagne is presented to the customers.”

She further explained that any open bottles are discarded at the end of each journey to ensure maximum freshness for passengers, with a new bottle popped open just before serving the next set of clients.

The eye-opening video has earned itself a whirlwind of internet fame, amassing over 42,000 likes as viewers have been left utterly astonished by the insights.