Why does ketchup need to be refrigerated after opening, but the ketchup at restaurants is left out all day (maybe even longer)? - Quora
![You don't need to store ketchup in the fridge, Which? says | London Evening Standard | Evening Standard You don't need to store ketchup in the fridge, Which? says | London Evening Standard | Evening Standard](https://static.standard.co.uk/s3fs-public/thumbnails/image/2020/03/04/13/tomato-ketchup-unsplash.jpg?width=968&auto=webp&quality=50&crop=968%3A645%2Csmart)
You don't need to store ketchup in the fridge, Which? says | London Evening Standard | Evening Standard
![In spite of what you may have read or heard, KETCHUP DOES NOT BELONG IN THE REFRIGERATOR!! (nor Hot Sauce) | ResetEra In spite of what you may have read or heard, KETCHUP DOES NOT BELONG IN THE REFRIGERATOR!! (nor Hot Sauce) | ResetEra](https://i.imgur.com/sWvjz.jpg)
In spite of what you may have read or heard, KETCHUP DOES NOT BELONG IN THE REFRIGERATOR!! (nor Hot Sauce) | ResetEra
![In spite of what you may have read or heard, KETCHUP DOES NOT BELONG IN THE REFRIGERATOR!! (nor Hot Sauce) | Page 3 | ResetEra In spite of what you may have read or heard, KETCHUP DOES NOT BELONG IN THE REFRIGERATOR!! (nor Hot Sauce) | Page 3 | ResetEra](https://i.imgur.com/GZMvPgP.jpg)