The video has been viewed more than 400,000 times on the social media platform and has been flooded with comments of people expressing utter disgust about the conditions of the restaurant.
One user said the video was like "something out of Stranger Things" – a popular show on Netflix, while another said "there's a reason why it's the cheapest property on Monopoly".
The Tik Tok video shows worms crawling round in the bottom of the McDonald's drink machine. Photo / Getty Images
The giant fast food chain has released a statement saying: "We take cleanliness and hygiene extremely seriously. Unfortunately, a number of weeks ago we were made aware of an issue in the drain serving the drinks station at our Old Kent Road restaurant.
"We immediately closed the drinks station and our hygiene team identified the cause of the issue which was fixed before a deep clean was carried out.
It’s been an Onslow signature menu item since day one. Now, Josh Emett’s famous crayfish eclair has clawed its way into the Iconic Auckland Eats Top 100 list. Video / Alyse Wright