16. Ketchup
![Ketchup](https://styleter.com/wp-content/uploads/2022/05/Ketchup-.jpg)
Ketchup is another element that doesn’t need to be refrigerated. The acidity in ketchup allows you to store it outside of the fridge, and it will stay fresh for about a month. If you’ll be using up the bottle more than a month from now, make some room in your refrigerator now.