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5 foods to always be refrigerated, but few people do it

5 foods to always be refrigerated, but few people do it Illustrative photo (Freepik)
Author: Maria Kholina

Storing food correctly is crucial to avoid food poisoning. Some foods should always be refrigerated. However, not everyone adheres to this, according to Martha Stewart.


Often, ketchup is left at room temperature due to its natural acidity, which aids its preservation. However, after opening, it should be refrigerated due to the unstable storage conditions.


Nutrition expert Katie Macarelli advises that if you consume mustard within a month of opening, it can be stored at room temperature; otherwise, refrigeration is recommended.

"Mustard contains less sugar than ketchup, so it can be stored outside the refrigerator for one to two months before spoiling," she added.

Peanut butter

It depends on how quickly you consume it. If you'll finish the jar within a few days of opening, it can be left in any cool, dark place. However, if you're unsure, it's best to refrigerate it. The peanut oil it contains can turn rancid if left too long in a warm room.

Citrus fruits

While many store lemons or oranges on the counter in a nice bowl, they'll last four times longer if kept in the refrigerator. This way, they'll maintain their shape and won't become mushy.


Thin tortillas won't dry out in the fridge, so there's no need to worry about that. However, it's highly susceptible to mold, so it's best to refrigerate it immediately, where it'll last twice as long.