If we are getting a fresh egg from a third party and we do not know if it is fresh or bad then we need to check it. A floatation test is a common test to check the freshness of an egg. To perform this test, you will need to take a glass of fresh water. After taking the water, we have to put the egg in it. If the egg sinks, it is an indication that the egg is fresh. If the egg floats on the surface of the water, it means that the egg is rotten and not safe to cook. On the other hand, if the egg does not sink or swim, that is, it stays in the middle of the water, it indicates that it is old but still, it is safe for cooking. After performing this test, when you use this egg for cooking, you will see how accurate the test is.
Why does a bad egg float?
Before discussing this, let us discuss a common myth about it. Some people say that a bad egg floats on the surface of the water because the liquid inside the egg changes to a state of gas. But this seems like a myth because if a liquid turns into a gas, it means that the density of the egg is higher than the density of water and it can float. Should sink instead.
Now, we come to the part where we talk about the middle ground. An egg sinks in water because it has a higher density than water. After a while, the liquid in the egg begins to decompose and begins to melt into a massive gas inside the egg. Therefore, these eggs emit some amount of gas through the egg shell. As a result, all the gas escapes. After losing a considerable amount of gas, the egg's density decreases and it begins to float on the surface of the water.
Why do bad eggs stink?
Eggs are known to be an excellent source of protein because they are rich in globulin and keratin proteins. When globulin is lost, it releases hydrogen sulfide. On the other hand, when keratin is lost, it releases an amino acid called cysteine. It is full of amino acids, sulfur atoms. Therefore, we can say that these two proteins release odors. This stench tells us that an egg is bad. The stench is similar to that of sewage treatment plants.
Most people have a lot of questions about the expiration date of eggs. They should know that after the eggs are packed, the expiration date should not exceed 30 days.
Another way to tell if an egg is bad or not?
If you do not have a glass of fresh water, you can check the freshness of the egg in another way. In this procedure, you have to keep the egg close to the ear. After holding the egg close to your ear, shake it and hear its sound. If you are not hearing enough, it means that the egg is fresh. On the other hand, if you hear a lot of noise while shaking it, it means that the egg is bad. This is because the liquid in the fresh egg is very stretchy and does not allow the particles to move. On the other hand, when it turns into a liquid gas state, it loses its elasticity and its particles move easily which makes a lot of noise.