Can you leave hard-boiled eggs out overnight

In this brief guide, we will address the query, “can you leave hard-boiled eggs out overnight?” We will also discuss how you can preserve hard-boiled eggs, how you can prepare this meal and their nutritional facts.

Can you leave hard-boiled eggs out overnight?

No, you can not leave hard-boiled eggs out overnight. According to the US Food and Drug Administration (FDA), it is not recommended to let your unrefrigerated hard-boiled eggs sit out for more than two hours.

You must keep hard-boiled eggs, or any other cooked food, in refrigeration. When cooked meals are exposed to variant temperatures, it is most likely that they exhibit quick spoilage because of microorganism growth.

What is the shelf life of hard-boiled eggs?

Hard-boiled eggs are the perfect meal when you are in a rush, as it will take you no longer than 15 minutes to prepare them! Also, they can be used in different ways: in sandwiches, salads, or even by themselves with a little salt.

However, like any other food, hard-boiled eggs should be consumed within a certain amount of days to preserve their nutrition facts and their freshness. The recommended time to consume hard-boiled eggs is up to 7 days in the fridge.

Storing your hard-boiled eggs in the fridge is the best way to preserve them, but you do need to keep their shells, this way there is no chance that bacteria growth occurs, and will avoid the absorption of any odors.

Can you store hard-boiled eggs outside the fridge?

When you boil eggs, the outer layer that covers the shell is removed, which causes eggs to be more likely to develop bacteria or mold growth, so leaving them at room temperature will only increase this chance, causing quick spoilage.

Storing hard-boiled eggs in the freezer is just the safest way to enlarge the shelf life of this dish, as it prevents any contamination or spoiling within several days. 

The best news about this is that refrigeration occurs at the temperature of 4°C, which causes the death of most microorganisms.

 So, some other tips that will help you enjoy your hard-boiled eggs for a longer period are

  • Do not leave hard-boiled eggs at room temperature for more than 2 hours.
  • Store them in their carton or use an airtight container. Make sure to keep them away from any heat and humidity source.
  • Do not place them in the fridge door, use an internal shelf instead. When stored in the door of the fridge, eggs do not receive a constant temperature but it changes anytime the door is opened.
  • Do not freeze hard-boiled eggs, this will cause them to become tough and watery, trust me when I say you would not want to eat them like this.

How can you tell if hard-boiled eggs have expired?

Several signs can help you spot rotten hard-boiled eggs, please be sure to check for these signs whenever you want to consume stored eggs. Your senses will be more than enough to determine their freshness.

Some signs that indicate rotten hard-boiled eggs are

  • Unpleasant smell. We all know that hard-boiled eggs may not exhibit the yummiest odor, but when you notice a rotten smell, it is time to throw them away.
  • The yolk is gray or watery. These indicators mean your eggs are no longer suitable for your consumption.
  • The shell has a slimy texture. When you notice a slimy texture in the shell of the eggs, it means they are contaminated with bacteria or mold, avoid eating them as they can cause foodborne illness. 

Note, to avoid a strong sulfide smell, you need to control the time of cooking, the longer time, it might cause a gassy smell. Have you ever smelled this outrageous smell?

What is recommended to keep eggs safe?

According to the FDA, several instructions need to be followed to guarantee the best preparation, cooking, and storing of eggs. Let us remember that eggs contain a harmful bacteria known as Salmonella. 

Consuming eggs that have not been submitted to the recommended guidelines, might end up sick and with annoying side effects. If you want to read about the best way to handle your eggs, please click here.

Are hard-boiled eggs healthy?

Hard-boiled eggs are an excellent source of protein, and also they have low-calorie content.

As they are only made with eggs and water, there are no added sugars, flavorings, or colorants, which makes them very healthy.

According to the USDA Data, one hard-boiled egg (approx. 50 grams) can provide us with

Nutritional facts about 1 hard-boiled egg
Total Fat5.3g
Saturated Fat1.6g
Monounsaturated Fat2.0g

Also, hard-boiled eggs exhibit some vitamins and minerals in their composition, such as

  • Vitamin A
  • Vitamin B2
  • Vitamin D
  • Zinc
  • Calcium

If you want to read more about this method to prepare your eggs, please click here


In this brief guide, we have addressed the query, “can you leave hard-boiled eggs out overnight?” We have also discussed other queries related to the subject at hand. 

Hope you found this blog useful. If you have any questions, please let us know.

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Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.