If you’ve shopped for groceries in Colombia, you may have noticed something odd: eggs are often displayed on regular shelves, not tucked away in refrigerated cases like milk or cheese. For shoppers used to popping their eggs straight into the fridge the moment they walk through the door, this can seem like a food safety oversight. But according to food safety authorities, including Catalonia’s food safety agency, there’s a good scientific reason behind the practice.
The issue comes down to what’s known as the “cold chain,” the unbroken sequence of refrigeration that keeps perishable food safe from farm to table. If eggs are chilled at some point and then moved to room temperature, condensation can form on the shell’s surface. That moisture creates the perfect environment for bacteria to multiply and potentially seep into the egg through its porous shell, undermining the very safety measures refrigeration is supposed to provide. Keeping eggs at a stable, unrefrigerated temperature in stores until purchase actually helps avoid this problem.
Once you get your eggs home, though, the advice changes: they should go straight into the refrigerator and stay there, since consistent cold storage at home helps preserve freshness and limit bacterial growth over time.
Curious about the details? Check out the full article for more.
Source: ¿Por qué los huevos están fuera de la nevera en el supermercado? La razón y cómo guardarlos en casa (eltiempo.com). English version produced with AI assistance.
Image: Muffet, BY 2.0 (via Openverse).