How to tell the difference between aged and fresh eggs

1. The color of the shell of a fake egg is brighter than that of a real egg, but it is not too obvious"Artificial eggs"There are signs of perforation at both ends of the eggshell. 2. If you touch the shell of a fake egg with your hand, it will feel rougher than the real egg. 3. There will be a sound when shaking the fake egg, which is because the water spills out of the coagulant.

4. Smell carefully with your nose, real eggs will have a faint fishy smell. 5. Gently tap, the sound of real eggs is crispy, and the sound of fake eggs is muffled 6. Soon after the fake eggs are opened, the yolk and egg white will melt together. This is because egg yolks and egg whites are made from homogeneous ingredients.

7. When frying fake eggs, you will find that the yolk naturally spreads out without stirring. This is because the film containing the artificial egg yolk cracks open when heated. 1. The shell of a fake egg is rougher than that of a real egg; 2. Fake eggs shake and have a sense of shaking inside, but real eggs do not; (Of course, if the real egg is expired and yellow, there will be a sense of shaking, but if an egg has a shaky feeling and is opened and does not yellow, there will be a problem) 3. Fake eggs may smell faint chemical, while real eggs have a faint fishy smell (but not obvious); 4. The shell of a fake egg is slightly thinner than that of a real egg; 5. Beat the fake eggs in a bowl, puncture the egg yolk, and leave it for a while, the egg white and egg yolk have the phenomenon of dissolving each other, because the egg white and egg yolk are made of the same substance, the difference is that the egg yolk is added with pigment.

It is said that artificial eggs are not only not nutritious, but they can also make people demented when consumed regularly! It may sound a bit sensational, but if you or your family eat eggs regularly, it's a good idea to keep an eye on them when buying them, especially if you have a baby at home.

Method 1 Look at the eggshell: When buying eggs in the supermarket, first look at the appearance of the egg to see if there are protrusions, the more protrusions indicate the fresher it is; Conversely, the smoother the surface of the eggshell, the longer the egg has been born. Method 2 Soak in cold water:

When you buy it home, you can soak the eggs in cold water. If the egg is lying flat, it means that it is still fresh; Leaning in the water, then the egg has probably been sitting for 3 or 5 days; If the egg is upright in water, it may have been left for more than 10 days; If the egg floats on the water, then it has already spoiled.

Take the egg and shake it in your ear, the one that makes a sound inside the egg is a aged egg, and the one that doesn't make a sound is a fresh egg.

Aged eggs have a smooth appearance, while fresh eggs have a rough appearance.

If you put the old and new eggs together, then put the eggs in light salt water, and the higher the bleach, the older they are. Give it a try!

It depends.

There may be several reasons why raw eggs shake and there are several kinds of shaking inside:

1. Transportation reasons: During the transportation of eggs, due to the failure to do a good job of protective and shockproof measures, the egg yolk membrane was ruptured violently, and the egg yolk was scattered and yellowed.

2. Bacterial staining: After the egg is contaminated by bacteria, the bacteria will enter the inside through the pores of the egg, and the bacteria will cause the eggs to turn yellow after the bacteria breed inside, and it will also make the eggs smell.

3. Storage time is too long: If the egg is stored for too long, the moisture in the egg white will slowly diffuse into the egg yolk, so that the egg yolk will expand and the membrane will rupture, so that the egg yolk will shake.

When choosing eggs, be sure to pay attention to the tactile sensation of the eggs. This is very important for loose eggs, and it is also an important way to distinguish between fresh eggs and old eggs, fresh eggs are very rough to the touch and have a strong texture, while old eggs will be very smooth, not as textured as fresh eggs.

Fresh eggs will look very bright, and even some pores on them can be seen more clearly, while aged eggs are bright and have no pores, this is because they have been placed for too long, and the pores are blocked by dust, so it will be so.

Smell: If there is already a distinct smell or peculiar smell, it must be broken.

Floating Test: The one who floats on the surface of the water is the bad guy.

I look at a purchase date and the expiration date and estimate it.

<> a few ways to judge whether an egg is good or bad:

The best test method without breaking the shell: floating water test.

1. Find a bowl and fill it with cold water, then put the eggs in it. If the eggs sink flat into the water, then they are very fresh. If the egg is a few weeks old but still edible, it will be cocked at one end and half standing in the water.

If the whole egg floats on the surface of the water, then throw it away, the egg is no longer edible. If you're going to get an omelette or scrambled egg, you'll do the same with eggs lying flat at the bottom of the bowl and eggs with one end up. However, if it is a hard-boiled egg, which is a practice of boiling the whole egg, then it is better to choose an egg in half a vertical water, because an egg that is too fresh is easy to stick to the shell and is difficult to peel.

2. In fact, to know the freshness of the eggs, you can check the packaging date on the carton, which is the ** date marked according to the Julian date. The Julian date is a chronological method that sets aside the year, with a value from 1 to 365, and because most of the branches will collect the eggs soon after the hens lay their eggs, the Julian date is much more reliable than the so-called shelf life.

1. Weigh the weight.

Eggs of the same size, the light weight indicates that the shouting is not very fresh;

2. Shake and listen to the sound.

If you hear a sound of obvious shaking, it generally means that the egg is not fresh;

3. Look at the expiration date.

Because the temperature and humidity of the eggs stored at home are difficult to control, some eggs can not be said to be fresh even if they are shaken, so it is not recommended to eat them when they are stored for a long time or when they are close to the expiration date.