Disagreements over which foods belong in the refrigerator are a common source of household tension, according to recent research. A survey indicates that two-thirds of families have experienced disputes over proper food storage. Food waste expert Kate Hall explains that confusion stems from the often counterintuitive nature of storing different ingredients.

Hall offers guidance on which items benefit from refrigeration and which do not. Contrary to popular belief, apples are best kept in the fridge, as the cold temperature slows the aging process and helps preserve their crispness. Potatoes also store well when refrigerated, extending their usability to three times longer than if left at room temperature. Once opened, jams and marmalades should be refrigerated to maintain freshness.

Additional foods recommended for refrigeration include citrus fruits, most fresh herbs, nuts, berries, peppers, and bread. Regarding condiments like ketchup, Hall notes that while many varieties contain acids, sugars, or salts that help preservation, manufacturers often advise refrigeration after opening to sustain flavor, color, and quality.

Eggs present a more nuanced case. They can be stored outside the fridge but only if room temperatures remain consistently below 20 degrees Celsius. On the other hand, some foods should be avoided in the refrigerator. Tomatoes, for instance, may lose flavor when chilled, and items such as onions, avocados, and bananas are best kept at room temperature.

When it comes to sweets, chocolate biscuits can be refrigerated because of their thin coating; however, chocolate bars may develop a whitish bloom in the fridge, which affects appearance though not safety. Olive oil and honey are also better stored in a cool, dark cupboard rather than in the refrigerator.

By following these recommendations, consumers can reduce food waste and maintain the quality and taste of their groceries, potentially settling common household debates about fridge storage.