I always fight with my mother-in-law on this one

Proponents of refrigerating ketchup argue that keeping it cold extends its shelf life and maintains its quality. The cooler temperature slows down the growth of bacteria and mold, ensuring that the ketchup remains safe to consume for a longer period. Additionally, refrigeration can help preserve the flavor and consistency of the ketchup, preventing it from becoming too runny or losing its tangy taste.

On the other hand, those who prefer to store ketchup in the pantry highlight its high acidity and sugar content as natural preservatives that make refrigeration unnecessary. They argue that ketchup was traditionally kept at room temperature before the widespread use of refrigerators and that it can safely remain in the pantry for several weeks after opening without any risk of spoilage.

Experts in food safety and preservation have weighed in on the debate, with many recommending refrigeration as the safest option. The USDA advises refrigerating ketchup after opening to ensure maximum freshness and safety. However, some culinary experts argue that the decision ultimately depends on personal preference and how quickly the ketchup is consumed.