Washing eggs before cooking does not eliminate salmonella bacteria, according to food technologist Montse Melendez.
Speaking to news outlet ABC, Melendez explained that rinsing eggshells under running water fails to remove the pathogen. She assured consumers that washing eggs prior to preparation is entirely unnecessary.
Melendez stated that salmonella represents the main health hazard associated with eggs. However, if these bacterial pathogens are present in the product, water will not help eliminate them or render the egg safe to eat.
Salmonella is a genus of bacteria that causes salmonellosis, a prevalent bacterial infection that affects the intestinal tract. Consuming contaminated food can lead to food poisoning, with typical symptoms including fever, abdominal cramps, diarrhea, and vomiting. Poultry and egg products are among the most frequent sources of human salmonella infections.
Preventing salmonella contamination
The principal rule for protecting against salmonella is to avoid consuming eggs raw, Melendez said. She explained that the pathogen dies when exposed to temperatures exceeding 70 degrees Celsius.
Thorough heat treatment during cooking ensures that bacteria in both the egg yolk and white are effectively destroyed. Heating food past 70 degrees Celsius breaks down the cellular structure of salmonella bacteria, rendering them inactive and harmless.
Along with avoiding raw eggs, Melendez stressed that consumers must practice rigorous kitchen sanitation. She said it is essential to thoroughly clean hands, cookware, utensils, and any kitchen surfaces that have come into contact with raw eggs.
Proper sanitation prevents cross contamination, a process where harmful bacteria are transferred from raw ingredients to clean surfaces, equipment, or ready to eat foods. Washing hands with warm water and soap after handling raw eggs helps prevent the spread of illness across domestic kitchens.
Broader food safety warnings
The advice on egg handling coincides with wider recommendations from culinary professionals regarding food preparation. Previously, chef David Guibert urged consumers to defrost frozen food properly, warning that failing to do so could lead to food poisoning.
Improper defrosting, such as leaving frozen items at room temperature, creates an ideal environment for bacteria to multiply rapidly on the outer surfaces of food while the center remains frozen. Food safety guidelines recommend thawing frozen items inside a refrigerator, in cold water, or using a microwave defrost setting prior to cooking.
