Why Washing Eggs Before Storage Could Increase the Risk of Food Poisoning, Experts Warn

A common kitchen habit may actually make eggs less safe and increase the risk of bacterial contamination.

Family Hospitalized After Egg-Related Food Poisoning Incident

A recent food poisoning case involving three family members has sparked renewed discussion about proper egg storage and handling practices. Health experts investigating the incident pointed to a mistake that many households routinely make: washing eggs before storing them.

Many people believe rinsing eggs immediately after purchase helps keep them clean and safe. However, food safety specialists say this practice can sometimes have the opposite effect.

Researchers explain that eggs naturally possess a protective outer coating that helps prevent bacteria from penetrating the shell. Removing or damaging this protective layer can make eggs more vulnerable to contamination.

Why Washing Eggs Can Be Risky

Scientific studies have shown that eggs may carry bacteria on their shells during transportation and storage. However, the shell's natural protective membrane helps reduce the risk of those microorganisms entering the egg.

When eggs are washed before storage:

• The protective coating may be weakened or removed.
• Tiny pores in the shell become more exposed.
• Moisture can help bacteria migrate through microscopic openings.
• The risk of spoilage may increase.

Experts note that bacteria such as Salmonella and Staphylococcus aureus can pose serious health risks if contaminated food is consumed.

Refrigeration Does Not Eliminate All Risks

Many people assume refrigeration completely prevents bacterial growth. While cold temperatures can slow the multiplication of microorganisms, they do not necessarily eliminate bacteria already present on food.

According to food safety experts, eggs stored improperly for extended periods may still spoil even when refrigerated. If contaminated eggs are later consumed, they can cause symptoms such as:

• Nausea
• Vomiting
• Stomach cramps
• Diarrhea
• Fever

Young children, older adults, and people with weakened immune systems may face a higher risk of severe illness.

The Recommended Way to Store Eggs

Food safety authorities generally recommend avoiding unnecessary washing before storage.

Instead:

1. Store eggs in a cool refrigerator.
2. Keep them in their original carton whenever possible.
3. Remove visible dirt gently with a dry cloth or paper towel.
4. Avoid exposing eggs to excessive moisture.
5. Use eggs before their recommended expiration date.

If eggs have already been commercially washed and sanitized before purchase, they should be refrigerated promptly and consumed within the recommended timeframe.

Cook Eggs Thoroughly Before Eating

Experts also emphasize the importance of proper cooking. Eggs should be cooked thoroughly to reduce the risk of foodborne illness.

Before cooking, a quick rinse may be performed if necessary, but eggs should be cooked immediately afterward rather than returned to storage.

Anyone experiencing severe symptoms such as persistent vomiting, dehydration, or high fever after consuming eggs should seek medical attention promptly.

The Bottom Line

Although washing eggs may seem like a smart hygiene practice, experts warn that doing so before storage can remove the shell's natural protective barrier and potentially increase contamination risks. Proper refrigeration, careful handling, and thorough cooking remain the most effective ways to keep eggs safe for consumption.