1. The eggshells of native eggs contain a lot of calcium, which are thick and hard, while those of foreign eggs are thin and brittle.
2. The egg white of earth eggs is clear and sticky, while the egg white of foreign eggs is very thin.
3, the egg yolk has a high degree of coagulation, floats on the egg white, does not sink to the end, and the toothpick can stand upright when inserted in the middle of the egg yolk;
4. Peel the boiled eggs and hold them in your hand. Even if the egg is squashed, protein will not crack, and it is still a complete egg.
Real earth eggs are really more delicious than any kind of eggs sold in the market. Real earth eggs, even boiled eggs, are delicious.
6. After the boiled eggs are cooked, you can see that the yolk has yarn after cutting, and the yellow is bright yellow, not white.
7, foreign eggs are big, and there are many egg whites-there is more water, which can be seen when frying eggs, and the oil pan is whirring.
Observation method of fresh eggs:
1, take an egg in your hand, hold it with your fingers and shake it gently in your ear. If you feel the water shaking in it, it means that the eggs are not fresh.
2. Find a basin, fill it with water and put the eggs in the water. If the egg sinks to the bottom, it means it is fresh. If the egg is written obliquely, it means that it has been a while. If the egg floats in the water, it means that the egg has been inedible for a long time.
3. Prepare a flashlight and shine it on the head of the egg in a dark place. If you see a big gap, it means that eggs take a long time. If the gap is small, it means that the eggs are fresh.
4. Roll a tube smaller than an egg with a paper shell, and then turn around the egg. If you see the egg is bright, it means it is a good egg. If you see a black ball, it means that the egg is bad.
Refer to the above? Baidu encyclopedia-earth eggs