How to choose fresh eggs that don t spoil?

1.Observe the surface of the eggshell first, rough means fresh, smooth surface, that is, eggs that have been placed for a long time, and the freshness is not enough. 2.

Put the eggs in front of the light bulb to inspect, if there are black spots, do not choose, of course, cracks, should not buy. 3.For eggs of the same size, you should choose a heavier one, because after a long time, the water will evaporate from the pores, and the weight will be relatively reduced, so the heavier ones will be fresher.

4.Or shake the egg, if there is a feeling of the yolk moving, it means that the air chamber is large and not fresh. 5.

Salt water can also help, put the eggs in the salt water, float up not fresh, to lie in the water, but also sink to the bottom, the freshness is enough. 6.If you don't know whether the eggs in the refrigerator are new or not, you can beat them in the bowl individually when you use them to check, fresh eggs, egg yolks bulge, egg whites are not easy to spread; If it is not fresh, the yolk and white will scatter, and the umbilical cord at both ends of the yolk will also dissolve, which is not fresh.

7.Fresh eggs should be arranged in an upright position, with one round end facing up and the pointed end facing down, so as to avoid the air in the air chamber from coming into contact with the egg white yolk and affecting the freshness. 8.

You can also apply a little oil to the eggshell to seal the pores of the eggshell to prevent bacteria from entering and water evaporation. 9.It is best not to put eggs together with something with a strong smell, so that the air holes in the eggshell do not absorb the smell.

10.There is a little trick, round eggs, large yolks, little whites; Slender eggs, with many whites and small yolks, can be purchased according to your needs.

How to choose eggs There are several simple structures in the egg, and in order to provide the air needed for the growth of chicks, the egg has an air chamber inside. Because there are many gaps on the surface of the egg that we can't see with the naked eye, air can enter and exit, so the longer the egg is placed, more and more air will run into the egg, and the air chamber in the egg will be larger. This is why it is popular to put eggs in water to test the freshness of eggs, when the eggs are left for a longer time, the more air in them, the easier it is for eggs to float in the water, so the eggs that are easy to float in the water are less fresh.

Of course, it's unlikely that you're buying eggs with a glass of water and testing them on the spot. It is recommended that you look at the egg against the light, if the egg has good light transmission and the surface of the egg is rough to the touch, the egg may be relatively fresh. In addition, when you open the egg, if the yolk is full and plump, and the egg whites are fresh and sticky, then this is a fresh egg selection.

How to choose eggs 1. See if the surface of the egg is clean, if it is stained with chicken feces and other debris, it is best not to prevent bacteria from attaching to it; 2. Look at the brightness and cleanness of the eggshell, if the surface of the eggshell is very bright and bright, it means that the storage time is relatively long, and the three-dimensional sense of the surface of the eggshell of fresh eggs is strong; 3. Pick up the egg and shake it in your ear, if there is a sound, it is not fresh; 4. Put the eggs in a dark place, use a small flashlight to shine at the larger end of the egg, the smaller the air chamber (that is, the gap inside the egg), the fresher.

I used to see Ma Ci holding the egg in her hand, shaking it gently so that the eggs hit each other, and listening to the sound. Good quality fresh eggs, eggs and eggs hit each other, the sound is crisp, and the hand holding the egg shakes silently. .

Look at the appearance of the egg to see if there are any protrusions, the more protrusions, the fresher, conversely, if the appearance is smoother, the less fresh. .Soak the eggs in cold water if the eggs are:

aLying flat, it is fresh. 1 7b tilted in the water, this egg has been lying for 3 5 days. cStand upright in the water, this one is ten days long.

d floated on the water, and the egg had gone bad. I often see adults do this at home, but I also use this method to buy vegetables in the market now, so it's okay!

Eggs as a necessity of daily life, basically appear on our table, eggs are rich in protein, vitamins and trace elements required by the human body, one egg a day can provide the human body with a day's energy needs. But for many friends, the choice of fresh eggs has also become a problem, stale eggs will affect the taste, bad eggs are destroyed by the nutrients of eggs, and even cause damage to the human body, is not conducive to people's health, fresh eggs not only taste super, but also rich in protein, so the eggs you buy are fresh?

Place the egg in the water and see if it floats. The egg has a small air chamber, and over time, air will slowly enter the egg through the small holes in the shell. The more air that enters the egg, the larger the air chamber in the egg and the easier it is for the egg to float.

If the egg sinks horizontally to the bottom of the bowl, then the egg is at its freshest. If the egg stands up, but one end is still in contact with the bottom of the bowl, then the egg is past its freshest time, but it is still ready to eat. If the egg floats, then it is not fresh anymore.

But that doesn't mean it's spoiled or inedible. You still need to knock it open and tell if it has gone bad by looking at or smelling it.

The sound of striking the eggshell identifies the presence of cracks and deterioration. The sound of a good egg touching it is solid and calm, like the sound of hitting a brick; There is a sound of empty when the hatched egg knocks on the big head. Take the egg to your ear and shake it vigorously, the sound of the good egg is real and small; Eggs with larger empty heads have a hollow sound; The sound of knocking out eggs is obvious; The preserved eggs are like the sound of knocking on the slag.

Through comparison, broken eggs, dumb eggs, preserved eggs, empty eggs, and water eggs can be distinguished. Sniff the eggs with your nose. Fresh eggs generally have no odor.

By sniffing, you can distinguish between eggs that have a smell of smell, bad eggs, and eggs that are contaminated with peculiar smells such as pesticides.

Eggs feel good when you put them in your hand. Fresh eggs have a rough feel, with a raised surface and a layer of white frost, which is a protective film of itself; Stale eggs feel smooth to the touch in the hand, and will be shiny to the light, such eggs are very stale eggs; There are some black dots on the surface of the egg, and if they come out of the shell, the egg is rotten and cannot be eaten.

First of all, there will be an unpleasant smell in the smell, and secondly, when you pick up the eggs, there will be a sound like running water in the clear fire, which is not very good; When choosing, you should first pay attention to the size and orange of the egg, and you can pick it up and shake it to listen to the sound inside, and then you should carefully observe the appearance of the egg.

There will be some small particles on the egg skin, the egg skin is not smooth, and it will sink into the water when placed in the water, and the sinking speed is particularly fast. When choosing eggs, you should go to a regular supermarket, you can gently shake the eggs to listen to whether there is a sound today, and don't buy too big eggs.

Generally smells very bad. And it's heavy. The skin is particularly dry and you need to pay attention to the color of this egg.

Summary. Hello dear to you. Distinguish eggs from freshness:

Weighing weight, eggs of the same size, light weight means that they are not fresh; Shaking to hear the sound, there is a sound of obvious shaking, indicating that the egg is not fresh; Looking at the expiration date, the temperature and humidity of the eggs stored at home are difficult to control, and the eggs cannot be heard even if they are shaken, so they are no longer eaten when they are stored for a long time or when the expiration date is approaching.

How to tell if eggs are fresh or not.

Hello dear to you. Distinguish the freshness of the eggs: weigh the weight, the eggs of the same size, the light weight indicates that they are not fresh; Shaking to hear the sound, there is a sound of obvious shaking, indicating that the egg is not fresh; Looking at the expiration date, the temperature and humidity of the eggs stored at home are difficult to control, and the eggs cannot be heard even if they are shaken, so they are no longer eaten when they are stored for a long time or when the expiration date is approaching.

Hello dear to you. Egg storage: suitable for storing eggs, home storage is 2 5 rooms; The shelf life of eggs at room temperature is different from that of winter and summer, so the storage time of eggs at room temperature is 15 days in summer, 30 days and 45 days in winter;

The freshness of eggs is mainly inspected from three aspects: 1. Eggshell: fresh egg shell, clear shell lines, astringent to the touch, clean surface with natural luster.

2. Weight: For eggs with similar shapes, the heavier ones are fresh eggs. 3. Smell and taste:

Fresh eggs are opened and poured out of the dissolved matter without abnormal smell, and the egg white is tasteless after cooking, the color is white, and the egg yolk taste is light and fragrant.

Eggs that are not fresh will be harmful to health, and today I will teach you to eat fresh eggs.

Here's how:

1) Touch: mainly by feel. Fresh eggs have a "pressing" feeling when held in the hand. Due to the continuous loss of nutrients and moisture in the process of storage, the spoiled egg has a large air chamber, so the weight is light, and the surface is also astringent. The hatched eggs have a slippery shell and are light to the touch.

2) Smell: Fresh eggs have no peculiar smell, fresh duck eggs have egg smell, if the eggshell has mildew or odor is moldy or bad, if there is gasoline smell or pesticide smell and other peculiar smell of eggs are contaminated eggs.

3) Light: Use daylight or lights to take care of it. The method is to hold the left hand in a socket circle, and place the inner end of the egg in the socket circle with the right hand, and look through the light.

The characteristics of light fluoroscopy of fresh eggs are: the egg white is completely transparent, orange-red, the air chamber is extremely small and fixed, the depth is within 5mm, slightly dark, the egg yolk is centered, tightly wrapped by the yolk membrane, showing a hazy shadow. When the egg rotates, the yolk also rotates, and the embryo is not easy to see, without cracks, blood spots, blood streaks, flesh spots, foreign bodies, etc.

Aged or spoiled eggs appear blurry, without dark shadows or yellowing.

Guiding recommendations: 1) The shelf life of refrigerated eggs is 40 days, 15 days at room temperature in winter, and 10 days at room temperature in summer

Sky. (2) Wash the eggs in the refrigerator and put them upright when storing.

3) It is recommended to buy less each time, and it is not too late to buy after eating.

To quickly select fresh eggs, we need to do these three steps: listen to the inside of the egg, smell the egg, and touch the surface of the egg.

There is an air chamber at the round end of the egg shell, if the air chamber is large, it is not fresh, and the small one is fresh. In addition, crack the eggs on the plate, if there is liquid flowing to the side of the egg white, it means that it is not fresh, I forgot the specific names, forgive me. If the yolk of the egg is loose, it must be broken.

Method 1: Fresh eggs are more pressing, and they are heavier to pick up than stale eggs. Method 2:

It's to look at the egg skin. Fresh eggs have a layer of white frost-like stuff on the shell, which aged eggs don't have. The skin of fresh eggs is slightly rough to the touch.

Method 3: Shake the eggs, fresh eggs have no sound, and those with sound are bad.

Put the eggs in a glass of water, if the eggs sink to the bottom, indicate freshness. If it floats in the middle of the water, it should be consumed as soon as possible. If it floats up and floats to the surface of the water, it means that it has spoiled and is inedible.

When selling eggs, you can see if there is a small pit the size of a pinpoint on the surface of the egg, if there is, it is fresh, if the surface of the egg is relatively smooth, then it is not very fresh.

Fresh eggs are relatively heavy, and there may be a thin white film on the outside of the eggshell Bad eggs will have that light, unstable, shaky feeling

1 Place in water. The more exposed the water. The less fresh the eggs.

Conversely: the higher the freshness, 2 the light transmitted (sunlight; Light observation, pinch the egg with your hand. Close the other eye:

Then control the eggs about two in front of the eyes that are opened. at three centimeters; against the light source. It is necessary to block the light from entering the eye through the outside of the egg:

That's when you see transparency.