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Food Safety: Are Eggs Left Out Overnight Still Safe to Eat?

Are eggs left out overnight still safe to eat? If you have ever wondered about the possible risks of leaving raw eggs unrefrigerated, then read ahead as we discuss expert guidelines for proper egg storage, and practical tips that will help you minimize the risk of food poisoning to enjoy eggs safely.

By Cookist

Eggs are a staple in many kitchens, but questions often arise about their safety when left out overnight. In this article, we will delve into the topic of leaving eggs at room temperature and whether it poses any risks to food safety. By understanding the factors that influence egg safety and following proper guidelines, you can make informed decisions about storing and consuming eggs.

What Are the Risks of Leaving Eggs Out Overnight?


Leaving raw eggs at room temperature for an extended period poses significant risks to food safety. Bacteria, such as Salmonella, thrive in warm environments and can proliferate rapidly in unrefrigerated eggs.

This is a worrying subject as it might be hard to determine if raw eggs has been contaminated overnight and eating such can lead to foodborne illness. Therefore, it is better to handle eggs with care and adhere to proper storage guidelines to mitigate these risks.

Factors Affecting Egg Safety


Eggs are perishable items that can harbor harmful bacteria. When left out at room temperature, the risk of bacterial growth increases significantly. Factors such as temperature, humidity, and exposure to air can contribute to the proliferation of bacteria on eggshells and inside the eggs themselves. This can lead to foodborne illnesses if you eat the contaminated eggs.

Other important factors that can compromise the safety of your eggs include time and shell condition. To prevent bacterial growth, you should store your eggs at or below 40°F (4°C). Additionally, the longer eggs are left at room temperature, the higher the risk of contamination. Cracked or damaged shells can allow bacteria to enter the egg, while condensation on eggshells can create a favorable environment for bacterial growth.

Safety Guidelines for Egg Storage

According to the USDA, eggs should be stored in the refrigerator at 40°F (4°C) or below to slow down the growth of bacteria and preserve freshness. Additionally, eggs should be stored in their original carton to protect them from absorbing odors and flavors from other foods in the refrigerator.

To safeguard against the hazards of bacterial contamination, it is essential to adhere to the following safety guidelines:

  • Refrigerate Promptly: Store eggs in the refrigerator as soon as possible to maintain freshness and inhibit bacterial growth.
  • Discard Damaged Eggs: Inspect eggs for cracks, breaks, or unusual odors before use. Discard any eggs with compromised shells to prevent contamination.
  • Use Within Two Hours: If eggs have been left out at room temperature for more than two hours, discard them to minimize the risk of foodborne illness.
  • Proper Handling: Wash hands thoroughly before and after handling eggs to prevent cross-contamination. Use separate utensils and cutting boards for eggs to avoid spreading bacteria to other foods.

Float Test: How to Test Your Eggs for Spoilage 

Despite precautions, if you have left eggs out overnight, it's crucial to assess their safety before consumption. One simple method to determine if eggs are still safe to eat is the float test. To do this, Fill a bowl with cold water and gently place the eggs in the water. If the eggs sink to the bottom and lay flat, they are fresh and safe to eat. If they float to the surface or stand upright, they may have started to spoil and should be discarded.


In conclusion, while leaving eggs out overnight may seem convenient, it can pose significant risks to food safety. Bacterial growth can occur rapidly at room temperature, increasing the likelihood of foodborne illness. To minimize these risks, it is best to store eggs in the refrigerator and discard any eggs that have been left out for an extended period. By following these guidelines, you can ensure the safety of your meals and protect yourself and your family from foodborne illness.

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