Step 1: Eggs are first washed with water to clean off the surface of chicken droppings and other dirt. Otherwise, when you boil the eggs, the impurities will enter the inside of the eggs with the fine holes of the shell.

Step 2: Put the eggs into the pot, add water not over the eggs, this time the secret is on, add 1 spoon salt in the water, salt can not only play the role of sterilization, but also can prevent the eggs in the process of cooking rupture.

Step 3: Add a little white vinegar to the pot and let it sit for 2 minutes before firing. The chemical composition of the eggshell is calcium carbonate, which produces a chemical reaction with white vinegar when cooking, and it is very good to peel after cooking, and you can automatically remove the shell by cracking the egg.

Step 4: Cover and cook on medium heat, turn to low heat and cook for 8 minutes, turn off the fire and simmer for 2 minutes, the eggs are ready.

Step 5: If you are in a hurry, soak the eggs in cool water for a few minutes and then peel the shells, if you are not in a hurry, natural cooling is the best. Don't soak them in cold water, as the bacteria will enter the inside of the shell and make them less hygienic to eat.

Nutritional value of eggs:

The nutritional value of egg yolks is a bit higher. Compared to the egg white, egg yolks also have these nutritional advantages:

1, contains a variety of fat-soluble vitamins (vitamin A, vitamin D, vitamin E and vitamin K), and almost all of the B vitamins;

2, contains a number of minerals, in order to calcium, phosphorus, iron, zinc, selenium content is higher;

3, contains a carotenoid, the eyesight is good;

4, is a good source of phospholipids, phospholipids help reduce blood cholesterol and promote the absorption and utilization of fat-soluble vitamins such as vitamins A, D and E.

How to pick fresh eggs:

1. Touch the eggs, this is very important, but also we can well distinguish between fresh eggs and stale eggs an important skill. If you feel very rough, texture is very strong, it is fresh eggs, because the smoothness of the old eggs is very bad, and will not appear fresh eggs like texture.

2. Look at the appearance, the old eggs appear more bright, almost no air holes, this is because the time placed too long, and the air holes have been blocked by dust, so this situation. And fresh eggs look very bright, and even the top of the tiny pores can be very good to see.

3. Smell, fresh eggs will have a smell of quicklime, in addition, if the eggs on a breath, there is a fishy egg, it is fresh, if not are not fresh eggs.