It is unlikely that any ordinary people think about the question of how much a chicken egg can weigh. Attention is usually paid to its size. However, this is important for breeders because the mass of one unit depends on the breed of chicken and the variety of egg. Therefore, this affects the cost. That is, with a small weight, keeping chickens becomes unprofitable.
The weight of a chicken egg is influenced not only by the breed of chickens, but also by factors such as the conditions of keeping birds, the age of the chicken, the direction of the breed (for meat, eggs, etc.). But still it is interesting what is the mass of eggs in a certain state (only protein and yolk, without shell, in boiled and raw form).
Weight of protein and yolk
The variety affects the weight of individual proteins and yolks, therefore, for determination it is customary to take the average statistics in a percentage ratio:
- the amount of protein in one egg is 60-65%;
- yolk - 35-40%.
Accordingly, if an egg without shell weighs 50 g, then the yolk in it is 20 g, and the protein is 30 g.
Egg weight without shell
The mass of eggs without shells is interesting to those people who follow a special diet. This allows you to accurately calculate the calorie content of the product, but for chicken breeders this is not a criterion of indicators.
The shell makes up about 9-11% of the total egg weight. Therefore, to calculate the mass of an egg without shell, it is enough to subtract an average of 10% from the weight.
How much does a raw and boiled egg weigh?
Any product that undergoes heat treatment necessarily changes its weight. But not a chicken egg. This is due to the fact that the protein and yolk are securely hidden in the shell, which does not allow water, steam, or air to pass through.
Therefore, the weight of the boiled egg is no different from the weight of the raw product. If the eggs are boiled without shell (a poached dish) or fried, then the weight is reduced by 10-14%.
Does egg weight depend on laying hens?
There are hens of egg and meat breeds. It follows that the former carry larger eggs than the latter. Among the egg representatives there is a huge variety of varieties that differ in weight, nutritional value and other parameters. Some chickens carry large eggs, others medium, and others small.
For example, there are diet eggs from hens of the Pavlovskaya breed . They have a small weight (50 grams), but at the same time they have high indicators of nutritional value. Therefore, they are ranked in the second category (corresponding to weight). Here you can mention many miniature breeds, whose eggs are very useful, but weigh little. But the largest, but with the minimum nutritional value of the eggs, are High-Line hens .
Egg weight in grams by category
The variety depends on the weight of the chicken egg. There are standard norms that are strictly adhered to. The gradation is as follows (indicators in grams):
|Grade / Category||Marking||Shell mass||Average performance||Unshell mass||Yolk Weight||Protein weight|
|Higher||IN||75 and above||75||68||26||41|
|Select||ABOUT||65 to 74.9||70||55-65||25-30||35-40|
|First||1||from 55 to 65||60||50||19-24||30-38|
|Second||2||from 45 to 55||50||35-45||16-20||25-30|
|Third||3||from 34 to 45||39-40||31-40||13-16||20-25|
It is quite easy to calculate the weight of ten eggs, but in one kilogram of the product may contain from 14 to 27 units.
Why do eggs sell by the piece, and not by weight?
Many products are sold by weight rather than individually. So why does this not apply to eggs? Here are the main reasons:
- Eggs are a fragile food product that must be stored separately from each other. That is why they are packed in specialized trays, which must be necessarily covered from above.
Thus, if you weigh the eggs, they will certainly beat (when transferred to a plastic bag or other packaging, during laying on the scales, etc.). Accordingly, any trading company will suffer losses. Is it worth talking about poultry farms that ship hundreds of thousands of eggs daily?
- All eggs are characterized by the presence of salmonellosis, as they are carried by hens in appropriate conditions. For this reason, after purchasing a product, each person should thoroughly wash them with soapy water or a special disinfectant. If the eggs are laid unpacked (for example, in bulk in a box, on the counter), then the products adjacent to them will certainly be infected.
This approach threatens global morbidity. Of course, there is an option - to equip a separate department in the trading floor, where eggs will be stored mainly, but this will force store owners to significantly increase the cost, which is neither profitable to the consumer nor the seller.
- It turns out that moisture is lost through the shell (over a certain period). Such evaporation does not affect one unit, but if you purchase, for example, 10,000 kg, then only 9,500 kg will remain as a result. Therefore, the seller, in order not to go negative, must increase the margin.
The most unusual facts about chicken eggs
They have been breeding chickens for centuries, so there is already an official list of interesting facts about eggs:
- We are used to seeing eggs of brown and white, but in the world there have been cases when hens laid blue and green eggs (shell). As it turned out, only certain breeds of chickens do this. The structure and chemical composition of the egg does not differ from the varieties that are familiar to us. But the difference is that multi-colored eggs are carried in small quantities.
- The smallest egg weighs only 10 grams, the largest - 450 grams (its length was 32 cm, diameter - 23). This is the official data that was recorded in England.
- In the UK, a chicken laid an egg in which there were 5 yolks at a time.
In China, eggs are made artificially. Calcium carbonate is used for the shell; for the yolk and protein, the gelatin base is used with dyes and flavorings. The importation of such products into Russia is strictly prohibited, therefore it is regarded as smuggling.
Whatever eggs you buy, remember that the category is in no way related to the nutritional value of the product. The variety is affected exclusively by weight. There is a myth in which people unconditionally believe: supposedly small chicken eggs are much more useful than large ones. However, this is not proven by science.