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Why are chicken eggs different colors: white, beige and brown? It’s simple – the color of the eggshell depends on the breed of chicken. The color and different shades of the shell have absolutely no effect on the taste and nutritional value.
But the size of the testicle directly depends on the age, weight and breed of the chicken. Food and food additives affect the brightness of the yolk.
Egg chemical composition
In 100 grams:
- calories – 157;
- 1 egg – 47 g – 73 kcal.
Composition:
- proteins – 12 g;
- fats – 11 g;
- carbohydrates – 0 g;
- water – 74,1 g;
- cholesterol – 570 mg, which is contained in the yolk and is less harmful, because it is balanced with lecithin, which is necessary for the nutrition of nerve cells.
Do not be alarmed, friends! 80% of cholesterol is synthesized by the human body. Cholesterol is what our sex hormones (testosterone and androsterone), estrogens are made of. A person cannot live without cholesterol.
There are many B vitamins, plus vitamins A, C, D, E, H, PP and minerals: choline, potassium, calcium, magnesium, phosphorus, selenium, iron.
The benefits of eggs
- this is the only product that is absorbed by the body during heat treatment up to 98%;
- quickly satisfies hunger;
- strengthens the nervous system (B12);
- the presence of lecithin improves the functioning of the liver and brain;
- prevention of cancer (choline);
- improves visual acuity (vitamin A);
- fights cholesterol plaques on the walls of blood vessels;
- eggs do not get fat and are often included in therapeutic diets;
- strengthens hair.
Egg harm
Danger to the body if
- There is an allergy.
- If the egg has been infected with salmonella, it guarantees an intestinal infection – a serious disease that is difficult to treat.
- Binge eating. Excessive protein negatively affects the health of the kidneys and liver.
Poultry products may contain nitrates, antibiotics and hormones that have been added to the birds.
How to choose eggs
What does the stamp on the shell mean: letters and numbers?
According to the standards, the following designations exist:
- D – dietary. The implementation period is up to 7 days;
- C – dining room. Implementation up to 25 days;
- Oh – perfect.
Categories by weight. The higher the category, the heavier the testicle
- B – the highest category;
- 1 – first category;
- 2 – the second;
- 3 – third.
Thus, there may be different labeling options. For example,
- CO – selected dining room;
- SV – dining room of the highest category;
- D1 – dietary of the first category.
How much to boil an egg
- soft-boiled: cook for 2-3 minutes from immersion in boiling water;
- “In a bag” – 5-6 minutes;
- hard boiled – 8-9 minutes after boiling water.
If the shell has a crack, add a little salt to the water while cooking to prevent the egg from spilling out. By the way, a raw egg is absorbed in half as compared to a boiled one.
How to store eggs
Eggs should not be stored in the compartment of the refrigerator door. Place them in a separate container on the refrigerator shelf. If the house is cool, you can do without a refrigerator by stacking your eggs in a basket.
Ideally, wrap each testicle in paper. The room temperature should be no higher than +20. The shelf life is one or two months. If the eggs are homemade and unwashed, they will last longer.
How to determine egg freshness
It is known that the egg becomes lighter when stored for a long time. Therefore, it is very easy to determine its freshness by dropping it into a glass of water. If it drowns, it is fresh; if it floats, it is stale. See drawing.
Useful Tips
- if possible, buy homemade (village) eggs. They are always on the market;
- if you are sure that the eggs are not contaminated with salmonella, they can be eaten raw;
- be sure to wash your hands after handling raw eggs.
Important! To clean the egg from dirt and harmful microbes, you need to rinse it with warm water + 40-50 ° C. This wash creates pressure to prevent harmful bacteria from entering. And if you wash them in cold water, the result may be the opposite.
Eat eggs with vegetables and herbs, not bacon or meat. Don’t get carried away with your daily egg consumption. A measure is needed in everything. Experienced nutritionists recommend 3 eggs per week – that should be enough.
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