Mustard
Similar to ketchup, mustard can also last longer if it is outside of the refrigerator. Mustard has a natural acid which acts as a preservative. This is why mustard can be stored even longer than ketchup.

Mustard
Soy Sauce
Did you know that soy sauce stays edible for roughly a year and six months? It sounds like quite some but it is a fact that soy sauce can do exactly that in the pantry. You should know, however, that storing it for that long may change its taste, but it will be fine.

Soy Sauce