"Oh? Isn't This Where Eggs Belong?"... Refrigerator Storage Habits That Can Cause Food Poisoning

Frequent Temperature Changes on Refrigerator Door Increase Salmonella Risk
Store Eggs in Original Carton Deep Inside the Refrigerator

Experts have issued a warning that a long-standing habit in many households-storing eggs on the refrigerator door-can actually pose a health risk. The concern is that placing eggs on the refrigerator door leads to rapid temperature changes every time the door is opened and closed, significantly increasing the risk of pathogenic microorganisms such as Salmonella proliferating.

A warning has been issued that placing eggs on the refrigerator door can cause a rapid temperature change every time the door is opened and closed, increasing the risk of pathogenic microorganisms such as Salmonella proliferating. Photo by Getty Images Bank

The Ministry of Food and Drug Safety in Korea recommends storing eggs at temperatures between 0 and 10°C, while the U.S. Food and Drug Administration advises refrigeration below 4°C. During the washing process, the protective membrane on the eggshell is removed, making eggs more susceptible to microbial contamination. As a result, maintaining a consistently low temperature is essential. In fact, Salmonella growth is suppressed by more than 99% when eggs are stored at temperatures below 4°C.

Experts explain that "the refrigerator door is structurally exposed to external air, causing frequent temperature fluctuations." They add, "If condensation forms on the eggshell surface, it creates an optimal environment for bacterial growth." Additionally, eggs are porous and can easily absorb odors, so storing them near the door-where smells from foods like kimchi or side dishes are common-can diminish their flavor. To ensure both safety and taste, it is best to keep eggs in their original paper carton and place them on a deep shelf inside the refrigerator.

A warning has been issued that placing eggs on the refrigerator door can cause rapid temperature changes whenever the door is opened and closed, increasing the risk of pathogenic microorganisms such as Salmonella multiplying. Pixabay

Experiments conducted by the National Institute of Animal Science under the Rural Development Administration also found that eggs stored at 4°C showed almost no Salmonella growth for 35 days. In contrast, eggs kept at temperatures between 10 and 30°C experienced a temporary decrease in bacterial levels, but these levels soon returned to high concentrations. The prevailing advice is that "during the hot season, food poisoning bacteria can multiply rapidly, so eggs should be refrigerated immediately after purchase and handled hygienically during preparation."

Home appliance experts explain that egg trays on refrigerator doors are designed for convenience, making it easier to access frequently used items, but this is not the optimal storage location. They emphasize that "the key to egg storage is not just keeping them cold, but choosing a spot where the temperature remains consistently stable."