Does ketchup go bad without refrigeration?

While ketchup contains some preservatives, such as vinegar and salt, it is still susceptible to spoilage over time. Refrigeration helps to slow the growth of microorganisms and extend the shelf life of ketchup, but it does not prevent it from spoiling indefinitely.

Unopened ketchup can typically last for several months at room temperature, but refrigeration is recommended after opening to maintain its quality and flavor. Once opened, ketchup should be refrigerated and used within 1-2 months to ensure food safety and optimal taste.