When buying eggs, should you buy red shell or white shell ?

As we all know, when we go to buy eggs, there will be red shell and white shell eggs, which eggshell color egg nutrition will be better and better, in fact, the nutrition of eggs with two colors of eggshell is the same, does not affect the nutrients. So when buying eggs, buying red shells and white shells are the same, don't worry too much about whether to buy red shells or white shells, let's take a closer look. <>

One, red-shelled and white-shelled eggs

The color of the eggshell is white and red, in fact, the color of the eggshell is mainly affected by the hen's synthesis of protoporphyrins, and this substance is determined by the genetic factors of the hen, so the eggshell color is innate. This largely overturns the idea of which color is more nutritious, and the color of the eggshell is already determined with the birth of the chicken, which is darker at the beginning of the laying and then gradually lighter, but the red and white shells cannot change with each other. So when you buy eggs, don't pay too much attention to the color of the eggshell.

More attention should be paid to the freshness of the eggs and the nutrition of the yolk. <>

Second, how to buy good eggs

Buying eggs, there are four steps that can help you, one look: fresh eggs have a layer of powder on the surface, which looks like a layer of "hoarfrost", which has a sense of light transmission to the light, and it is best that there are no spots and pimples on the eggshell; If there are colored spots on the eggshell, or the color is dark or light, or there are blood stains, it proves that the chicken has a disease and is not suitable for buying. Second touch, when buying eggs, touch them with your hands, and the feel is slightly rough and textured, indicating that the eggs are relatively fresh.

If it feels smooth, it means that it has been a while. Three shakes, when buying eggs, hold the egg in your hand and shake it gently, if you can hear the feeling of shaking like water, it means that the egg is not fresh. On the contrary, the egg is stuffy and has no sound, and there is no shaking feeling, it is fresh.

Fourth, the egg shell is breathable, and the fresh egg smells fishy. If it smells foul, the eggs are broken. <>

When buying eggs, the nutrition of red shells and white shells is basically the same, so don't worry about the color of the eggs.

Generally, when buying eggs, I buy eggs with red shells, and I hear people say that red shell eggs have a longer storage time, and white shell eggs have a thinner skin and a shorter storage time.

There is not much difference between a red shell and a white shell, but to distinguish between a native egg and an ordinary egg, native eggs are definitely more nutritious. Generally, the shell is thin after all, because the shell is relatively fresh.

There is no difference between white-shelled eggs and red-shell eggs except that the eggshell color is different. The color of the eggshell is entirely genetically determined and is closely related to a substance called eggshell porphyrin. In some chickens, hemoglobin metabolism in the blood can produce eggshell porphyrins, and the eggshell is light red.

Some chickens do not produce eggshell porphyrins, so the eggshell is white. Therefore, there is no direct relationship between eggshell color and nutritional value, and there is no need to worry about eggshell color when buying eggs.

How to pick eggs:

1. Look at the appearance: Don't buy eggs with sand spots on the eggshell, because its eggshell is thin, which is easy for bacteria to enter the inside of the egg.

2. Listen to the sound: Pick up the egg and shake it in your ear, if there is no sound, it is a fresher egg. The sound of water swaying is Chen Dan.

3. Blister: If the eggs are bought and put away for too long, they can be tested in water. Pour a small basin of water and put the eggs in the water, if the eggs sink quickly, it means that the eggs are still fresh, and the eggs floating on the water are not edible.

There is no difference between white-shelled eggs and yellow-shelled eggs except that the color of the eggshell is different. White-shelled eggs are colored because the pigment secreted by the uterine epithelium of the hen is white, and yellow-shelled eggs are yellow because the pigment secreted by the uterine epithelium of the hen is yellow.

The color of the eggshell has nothing to do with the egg white and yolk that it encloses, and the nutrients we need are basically derived from the egg white and yolk. Therefore, when choosing eggs, don't pay too much attention to the color of the eggshell, and it is difficult to judge which eggs are more nutritious based on the color alone. Therefore, in the choice of eggs, it is better to be fresh.

Both red-shell and white-shell eggs are good.

Eggs have bridge friends red shell, white shell points, the color of the eggshell is mainly different from the chicken and feed is different, the red shell egg is generally born by the grass chicken, which is characterized by thin eggshell, large egg yolk, hail brightening orange, white shell egg is born of white chicken, characterized by thin eggshell, small egg yolk, light yellow, eggshell is mainly composed of a substance called eggshell porphyrin, and has no nutritional value. Science and technology workers have lived under the same conditions of grass hens and white hens with the same kind of feed feeding, the composition of the red shell eggs and white shell eggs laid by the composition, the results, from the two main nutrients of the eggs, protein and fat analysis results, the content of red shell eggs is and, white shell eggs are and, the difference is very small, and other nutrients are basically similar.

There is not much difference between white-shelled eggs and red-shell eggs.

The nutrition of white-shell eggs and red-shell eggs is almost the same, and the main nutrients of eggs are protein, fat, cholesterol and some vitamins and other trace elements. Different varieties of eggs can indeed have some nutritional differences, but this difference is small and even negligible.

So when you go to the supermarket to buy eggs, don't think that white-shell eggs are more nutritious than red-shell eggs, their nutrition is about the same, it is not wise to pick eggs based on color, just pick some fresh eggs.

Tips for picking fresh eggs

The most important thing to buy eggs is not to look at the color, but to distinguish the freshness of the eggs and observe the appearance, if the eggs are stored for too long, or there are defects on the surface, it is easy to increase the chance of bacterial infection.

Generally, the surgery of fresh eggs is relatively rough, there will be fine pores and powder on the surface, the color is uniform, and there is no liquid flow texture when shaking, so you should pay attention to distinguish when buying. In addition, the yolk of fresh eggs is complete and full, and the egg whites are transparent and viscous, if the egg texture is thin, the yolk is scattered, and the boundary between the egg white and the yolk is not clear, it is likely to be an egg that has been stored for too long.