Eggs Float Or Sink When Bad

Eggs are a staple in many kitchens, and they can be used in a variety of dishes. But how can you tell if an egg is bad? One common method is to place the egg in a glass of water. If the egg sinks to the bottom, it is fresh. If it floats, it is bad.

But why does this work? The answer lies in the air cell inside the egg. As an egg ages, the air cell grows larger. This is because the egg's shell is porous, and air can slowly pass through it. As the air cell grows, the egg becomes less dense and more buoyant. This is why it floats in water.

How big does the air cell have to be before an egg floats? It depends on the size of the egg. A small egg will float with a smaller air cell than a large egg. But in general, an egg will float if the air cell is about 1/4 inch (6 mm) in diameter.

The float test is not the only way to tell if an egg is bad. You can also look for cracks in the shell, or you can smell the egg. If the egg has a strong odor, it is probably bad.

If you are not sure whether an egg is bad, it is best to err on the side of caution and throw it away. Eating a bad egg can make you sick.

Here are some additional tips for storing eggs:

Store eggs in the refrigerator at a temperature of 40 degrees Fahrenheit (4 degrees Celsius) or below.
Do not wash eggs before storing them. Washing eggs can remove the protective layer on the shell, which can make the eggs more susceptible to bacteria.
Use eggs within 45 days of purchase.