Can you eat Eggs that float?

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Eggs are a staple food in many cultures around the world. They are a rich source of protein, vitamins, and minerals, making them a nutritious addition to any meal. However, one question that often arises is whether it is safe to eat eggs that float. This is a common concern, and there are many myths and misconceptions surrounding it. In this blog post, we will explore the science behind floating eggs and answer the question, can you eat eggs that float?

Can you eat Eggs that float?

The Science Behind Floating Eggs

Eggshells are porous, which means that air can penetrate them over time. As an egg ages, the air cell inside it gets larger, causing it to become less dense. When an egg is less dense than water, it will float. The floating egg myth is often associated with the belief that eggs that float are rotten or unsafe to eat. However, this is not always the case. The floating egg test is a simple way to determine an egg’s age and freshness, but it does not provide a definitive answer about its safety.

Are Floating Eggs Safe to Eat?

The short answer is, it depends. Floating eggs do not necessarily mean that they are unsafe to eat. It is possible for an egg to float and still be perfectly fresh and safe to consume. However, if the egg has been floating for a long time, it may not be safe to eat. A good rule of thumb is to use the floating egg test as a preliminary check, but also to perform other tests to determine if the egg is safe to eat.

One way to test an egg’s safety is to crack it open and check for signs of spoilage. If the yolk and white appear normal and have no unusual odor, then the egg is likely safe to eat. However, if there are any signs of spoilage, such as a foul odor, a greenish yolk, or a runny white, then the egg should be discarded.

How to Determine an Egg’s Age and Freshness

The floating egg test is a simple way to determine an egg’s age and freshness. To perform the test, fill a bowl with water and gently place the egg in it. If the egg sinks to the bottom and lays flat on its side, it is very fresh. If it sinks but stands upright or tilts slightly, it is a few days old but still fresh. If the egg floats to the top, it is old and should be discarded.

Another way to determine an egg’s age is to check the Julian date on the carton. The Julian date is a three-digit number that represents the day of the year. For example, January 1st is represented by 001, and December 31st is represented by 365. Eggs are typically labeled with a sell-by date, which is usually 30 days after the Julian date. So, if the Julian date is 150, the sell-by date would be 180.


In conclusion, floating eggs do not necessarily mean that they are unsafe to eat. The floating egg test is a useful tool for determining an egg’s age and freshness, but it is not a definitive test for safety. It is important to perform other tests, such as cracking the egg open and checking for signs of spoilage, to determine if an egg is safe to eat. By following these guidelines, you can enjoy the many benefits of eggs without putting your health at risk.

Can you eat Eggs that float?
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