2024 Author: Isabella Gilson | [email protected]. Last modified: 2023-12-17 03:14
People who at least occasionally go into the kitchen to not only eat, but also cook something, eventually notice useful little things. For example, that eggs do not float during cooking, but lie on the bottom. Therefore, the vague suspicions that arise when a raw egg floats in water are not unfounded.
What's inside?
Difficulties in determining the freshness of such a product when buying are obvious. Especially in supermarkets, where eggs are often sold in closed, opaque packaging. But everything becomes clear when we bring them home and start cooking. If at the same time you have to break them, then the following signs should alert you:
- Smell of hydrogen sulfide.
- Opaque protein.
- When broken into a pan or bowl, the yolk immediately spreads.
But how can you test the freshness of an egg without breaking it? Just immerse in water. If an egg floats in water, it is spoiled or stale.
Why does a spoiled egg float?
Contrary to popular belief, an egg is not airtight at all. The shell has pores so that the chick can breathe. But apart from oxygen through them insidemicroorganisms also enter. As a result of the vital activity of some of them, putrefactive processes develop and gases are released. If an egg floats in water, it means that a lot of gases have accumulated in it, which are lighter than water.
By the way, even if there are no harmful microorganisms inside that cause rotting and an unpleasant smell, the old egg will still float. Air gradually accumulates between the protein and shell membranes on the blunt side. For the same reason, a stale egg is very light.
By the way, this is why it is recommended to store eggs with the blunt end up so that the yolk does not come into contact with the air chamber. And it is better not to put them in the compartment in the refrigerator door, as frequent opening of it leads to the fact that they deteriorate faster.
If the egg does not pop up completely
When, when immersed in water, the egg immediately goes to the bottom and takes a horizontal position, then we have a very fresh product. But over time, the chemical processes occurring inside change the consistency of the protein and yolk, making them more liquid. Therefore, if the egg floats in the water with a blunt end up, then it is about a week old. So, you can still eat it. If it takes a vertical position, then it is about 2-3 weeks old. An egg that is more than a month old floats completely and cannot be eaten.
Deceptive s alt
Knowing people add a little s alt when boiling eggs so that accidentally broken eggs do not leak out. Therefore, it should be noted that if you first added s alt to the water, then the correct definition of freshness will be in question. The fact is that s alt increases the density of water. If an egg floats in water that has been previously s alted, this does not necessarily mean that it is stale. But if it lies horizontally even in s alt water, then the product cannot be fresh.
How to determine the quality of eggs in the store
To prevent all three dozen purchased eggs from suddenly floating up, you should try to determine their freshness when buying.
- View the expiration date. It must be borne in mind that the class of the product must be indicated on the packaging. There are dietary eggs that are stored for no more than 8 days, and there are table eggs (blue print), which we most often buy. Their maximum shelf life is one month. There is also a class of long-term ones. They can be kept in the refrigerator for about six months, but these are rarely found in stores.
- Examine the surface. The shell should be matte and slightly rough. It is smooth and shiny only in stale eggs.
- Weigh the egg on your hand. If it is old, it will be very light in weight.
- Shake the egg. When it is fresh, the yolk does not move inside. This means that you will not feel that something is dangling in the shell, and you will not hear any sounds when shaking.
Well, now we have figured out what's what, and realized that if the egg floats completely in the water, then it is stale, or even rotten. However, a boiled egg may float up, mistakenly placed next to raw ones, but such confusion rarely occurs. Therefore, it is better not to save on he alth anddiscard stale product.
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