Foods That You Should Never Refrigerate
Ketchup
Here’s another debate among condiment owners: where do you keep your ketchup? Most of us probably keep our ketchup in the fridge once it’s open, but the vinegar in the sauce will react badly to cold air over time.
It is best to keep it in the cupboard where it belongs and it will keep the taste longer. This will also prevent the runny watered residue we all hate and try to avoid. The same can be said for other condiments with a high amount of vinegar, so keep it in mind when you go shopping.