Last week, a British website called "Which?" asked experts which condiments you should store in the fridge, and which ones you should keep in the cupboard.
People on Twitter were SHOCKED by the experts saying that ketchup should NOT go in the fridge.
The article says, "There's no need to keep ketchup in the fridge. Not only does it contain vinegar, but tomatoes are naturally acidic, and this helps to preserve the product in room temperature conditions."
Some put it in the fridge due to wanting a "chill taste" and someone tweeted, quote, "People that don't keep ketchup in the fridge are psychopaths."