It is difficult to guess whether you bought fresh eggs, because under the shell it is impossible to peep, not to split it, but it reliably hides the look and smell of the contents. And yet there is a solution. It turns out that you can easily and quickly determine the freshness of this valuable product with ... simple water.
Egg theory
Eggs are an unusual product that carries many secrets. For example, it seems to many that the shell is impenetrable, but this is not at all the case, otherwise how can a chick breathe? The coating has micropores, invisible to the naked eye, and passes air. 
And once there is a hole - that is, access and microorganisms. It is because of harmful bacteria that the egg can deteriorate.
Important! This product must be well washed before eating. And when choosing a store, it is worth buying only in its pure form (without litter).
So, let's figure it out: how to determine the degree of suitability of the product, not breaking the shell? This is not about ultra-modern electronic devices. We only need a glass of water and an experimental testicle.
What egg does not float
When we need to cook this product soft-boiled or hard-boiled, we take a pan and immerse in the cold liquid the required number of eggs. Attentive housewives have repeatedly noticed that they usually immediately sink to the bottom, and this is the norm. Fresh chicken product always lies on the bottom.
Did you know? Chicken is the most common bird on earth.
We will understand why this is happening. The fact is that the activity of microorganisms always contributes to the release of gas, and gas is lighter than water, which is a liquid. And since the product is fresh and there are no harmful bacteria in it in dangerous quantities, there is no gas in it either.
What egg hangs in the water
If you immerse the egg in a container with water, you see that it hangs in the middle, between the bottom and the surface, you should not be upset and angry with the seller for a stale product. 
It is not really the first freshness, but it is edible and not at all dangerous.
We advise you to find out how quail eggs and guinea fowl are useful.
The fact is that the air has already managed to pass through the pores and accumulate between the shell and a thin film (when breaking the shell, it can be seen with the naked eye). Such a phenomenon did not harm the product at all and did not degrade its quality.
What egg pops blunt end
Elevation of the testicle to the surface of the water with a blunt end indicates that this product is already a week and there is a certain activity of microorganisms inside it, which made the contents less liquid (thickening it), but it is still usable.
The main thing is to eat it as quickly as possible.
Did you know? A tiny hummingbird demolishes the world's smallest bird eggs - their diameter is about 12 mm.
What egg pops up completely
If the egg floats to the surface completely - most likely your breakfast is spoiled, because there is enough gas in it to push the not-so-easy product out of the water.
However, you can do another test: break it into a separate bowl. If there is no characteristic odor - then the product can still be eaten. If the egg has an unpleasant, pungent smell, there will be no doubt - it will be over. 
Salt Water Surf
It is believed that adding salt to water before cooking will help preserve the integrity of the shell during its heating.
Important! Protein-yolk substance is able to absorb aromas through the shell.
However, if you decide to check the freshness of the eggs directly in the pan - you can not salt the water. Salt will change the chemical composition of water, which will increase the density of the liquid. The result will be inaccurate: a fresh egg dipped in a salty liquid will not pop up.
Video: how to check egg freshness with water
So, it is possible to determine the freshness of eggs, even without violating their integrity. This is very important, because buying them even from the most familiar and trusted seller, you need to remember that no one is immune from error.
We encourage you to learn about egg breed chickens, why chickens carry small eggs, why chickens do not carry eggs, and how to improve egg production.
A spoiled egg poses big health problems, so it is better to dip an egg into cold, not salty water for a tasty, and most importantly - safe breakfast before every meal.
Feedback from network users
The first, one might say, old-fashioned way, is with the help of water. As you know - the older the egg, the more air appears inside it. This is due to the fact that over time, the liquid gradually evaporates from the egg, and the protein dries out. Which reflects on its buoyancy. Completely fresh egg was put into the water, immediately goes to the bottom, lying flat. Having lain for several days, it will already be becoming "on the butt", upright, pointed end up. Well, the old, bad egg will float on the surface.
The second way is more obvious - break an egg. Fresh protein will not spread throughout the bottom of the bowl, but will look like a thick transparent kissel, and the yolk will resemble a half-melted ball.
Well, finally, you can enlighten the eggs on the stowatt light bulb. The air chamber in this case will be immediately visible. You can also see dark spots, and the yolk will be pressed to the shell, which should not be.
Purchased egg: 65 gr, and from own chicken: 105 gr. Feel the difference.
