It is better to boil eggs in hot or cold water

In order to avoid breaking the shell, it is best to "boil the egg", the reason for the eggshell rupture is due to the fact that the egg white yolk expands in volume when heated, and the expansion rate of liquid is greater than that of solid eggshell, and when the volume of the liquid content is greater than the capacity of the eggshell, the eggshell will burst.

If the egg is heated quickly, when the outer layer of the egg white is heated and expanded, the inside is still cold, there is no expansion, the total expansion is relatively small, and the increased capacity of the eggshell expansion and the capacity of the air chamber in the egg can withstand it, and it will not burst. When the heating continues, the inner layer begins to expand by heat, the outer layer of egg white has solidified and contracted, the total expansion is relatively small, and the eggshell will not burst. Boil the eggs for 8 minutes just right.

If the time is too short, the eggs will not be cooked and the symptoms will be loose. From a sterilization point of view, eggs must reach a core temperature of 70-80°C to kill Salmonella, so it is recommended that you do not eat soft-boiled eggs or raw eggs.

Boiled eggs should be boiled in a pot under warm water, do not use cold water and boiling water, the water temperature is about 40 degrees, and it is okay to just burn your hands.

First of all, put the eggs into cold water to clean, add a spoonful of flour, the flour has an adsorption effect, because there are a lot of dirty things on the surface of the eggshell, if you can't wash it cleanly, there will be bacteria, soak it in flour water for 10 minutes, and then rinse it clean, so that it is particularly clean.

Boiled eggs, pot under cold water or hot water? Most people do it wrong, no wonder eggs are not easy to peel, boiled eggs should be boiled in a pot under warm water, do not use cold water and boiling water, the water temperature is about 40 degrees, just hot hands can be, and then point two drops of white vinegar, the effect of white vinegar can soften the eggshell, so that it is easy to fall off when peeling, cover the pot, boil over high heat, generally cook for about 5 minutes after boiling, and simmer for 1 minute after turning off the heat.

Remove the eggs and put them in cold water to cool, the effect of this step is to make the eggshell cold, so that the egg white and the eggshell are easier to separate, and there is no broken egg in a pot.

Cooking tips: 1. When washing eggs, it is easier to wash the dirt on the surface of the eggshell by adding a spoonful of flour. 2. Soak in cold water for a while before boiling, so that the eggs are not easy to boil.

3. The pot should be warm, not cold or hot. 4. Add a drop of vinegar after getting out of the pot to soften the eggshell, simmer for a while after cooking, and then open the lid. 5. Remove and cool with cold water, which is also a key step for peeling eggshells.

1. Boiled eggs.

Before, the eggs should be cleaned first, because there will be residual chicken manure, dust and bacteria on the surface of the eggs, and if they are not cleaned, it is easy to contaminate the eggs during the cooking process, which is very unhygienic.

2. The water for boiling eggs must be cold water, boiling water to boil eggs, eggs are very easy to break the shell, as long as the amount of water can not exceed the eggs.

3. Add a spoonful of salt to the water of boiling eggs, which can not only sterilize and disinfect, but also make the eggs better peeled after boiling and not sticky to the shell.

4. Before boiling eggs, let the eggs soak in salted water for 2 minutes, which can prevent the eggs from breaking during the boiling process.

5. Note that it is best not to boil eggs for more than 10 minutes, as boiled eggs will be old and dry for more than 10 minutes, and will destroy the nutrients of eggs.

6. Put the boiled eggs in cold boiled water to cool down the heat, but do not use raw water, otherwise the bacteria in the raw water will enter the eggs and it is unhygienic to eat.

Boiled eggs are best boiled in a pot under cold water. The pot under cold water can make the eggs slowly warm up in cold water, start to set slowly from the outside in, and finally all are cooked thoroughly, this kind of boiled eggs will not break, and the ripeness is uniform. Eggs in hot water are easy to crack due to the large temperature difference between inside and outside.

Boiled eggs, pot under cold water or hot water?

Eggs are an indispensable food for our lives, and there are many ways to eat it, but in terms of nutrient absorption and digestibility, boiled eggs are the best absorbed, which can reach 100%, scrambled eggs are 97%, tender fried eggs are 98%, boiled water, milk are washed eggs, and raw food is 30% 50%, therefore, eggs are best boiled and eaten.

When boiling eggs, you can add a little white vinegar to the water, which can react with the egg shell, so that the boiled egg is very easy to peel; In addition, after the egg is boiled, it can also be put in cold water to help with the shelling.

If you want the eggs to cook faster, you can also boil them in hot water, but you should use a steel needle to pierce some fine holes in the shell of the eggs before getting out of the pot, so that the egg whites will not flow out and the boiled eggs will not break, and it will generally be boiled for 3-5 minutes.

Boiling eggs in cold or hot water actually has its own benefits. If you boil it in hot water, the water can be boiled in a short time, and the time required to boil the whole egg will be shorter. However, the time it takes to boil eggs is not long, so most people do not actually use hot water to boil them.

The advantage of cold water is more obvious, it can effectively prevent the egg from breaking. Because of the existence of thermal expansion and cold contraction, it is easy to crack the egg in the process of boiling eggs, and the egg breaking will not only affect the appearance, but also may make the texture of the egg white worse.

From a safety point of view, the boiling time of eggs should not be too short, generally the yolk begins to set when it is boiled for 6 minutes, it is recommended that everyone should cook it for more than 8 minutes, so as to ensure that the salmonella bacteria that may be present in the eggs are killed.

From a nutritional point of view, the difference is not huge. Heating has very little effect on the nutrition of eggs, and nutrients such as protein and minerals will not be absorbed by cooking for a few more minutes. And from the perspective of taste, it is "the benevolent see the benevolent, the wise see the wise".

Some people may think that the hard-boiled eggs taste better, while others may feel that the more cooked they are, the more choking they are, and they still prefer to eat eggs that are a little more "soft-hearted". So here, the dietitian of the ** nutrition class will summarize for you that for boiled eggs, it is best to choose eggs that are more than 6 minutes and less than 10 minutes, which can take into account safety, nutrition and taste.

How effective should eggs be boiled in cold or hot water? Let's do an experiment to get a very clear idea of how eggs are cooked.

First we boil hot water in a pot, then put in the eggs and cook for seven or eight minutes. Remove and quickly put it into cold water, the principle of thermal expansion and cold contraction, so that the egg shell is very easy to peel off.

After peeling off the eggshell, we can break open the egg white part and see that the yolk is dark green. This is the color formed by the high-temperature condensation of cuprous iron ions, which is obviously not good for the body if you eat too much organic salt.

Then experiment with cold water, put water in the pot and put the eggs. Again, turn on low heat and cook for seven or eight minutes. Turn off the heat and simmer, cover and cook for another two minutes. Also take it out and put it in cold water, it is easy to peel off the shell when it expands and shrinks.

When peeling the shell and opening the egg white, you can see that the egg yolk is golden yellow, which is the original juice of the egg yolk. A comparison of the two egg yolks shows that the cold boiled egg is more effective. Boiled eggs in cold water have smoother and tender egg whites, while boiled eggs in hot water have harder egg whites.

Through two experiments, it can be concluded that eggs should be boiled in cold water, and the good condition maintains all the nutrients of the eggs.

Cold water!!!

In a pot under cold water, boil until the water boils, and the eggs are cooked.

Hot water under the pot may come out of the hot spring egg bar!

So it has to be: cold water, cold water, cold

Eggs are a very common ingredient in our daily life, which is rich in protein and can provide our body with a lot of nutrients, so eating an egg every day is a good thing for our body. Boiling eggs is a very simple thing, but sometimes some people boil eggs and it is easy to break the eggs, so when boiling eggs, should they be boiled in a pot under cold water or hot water? When boiling eggs, it is better to choose cold water, because if you cook under cold water, the eggs are not easy to break, and the boiled eggs will be very smooth, and it will not affect the taste, and you must control the time when boiling eggs, sometimes the cooking time is too long, it will affect the taste.

One. Boiled eggs in cold water are preferred.

Boiling eggs is a very simple thing, but many people don't pay attention when boiling eggs, and always break the eggs in the pot, which looks unsightly, and it is not easy to peel eggs. There are many benefits of boiled eggs in cold water, which can make fragile eggs not easy to break in water, and eggs are easy to peel when they are boiled. If you boil eggs in hot water, it is difficult to peel the eggs.

Two. Eggs bring a lot of nutrients to our lives.

In our daily life, I believe that everyone, there will be an egg for breakfast every day, our body needs a lot, and there are also material needs to be obtained from a lot of food in life, such as eggs are very rich in protein, an egg a day, will bring a lot of benefits to our body, but some people with certain diseases should not eat eggs, at this time we should choose other proteins**. Boiling eggs is a very simple thing in itself, and if you like to eat soft-boiled eggs, boil them in a pot under cold water for a short time.

It is best to use cold water, as it is not easy to cause eggs to break. Boiling eggs in hot water, because the inside of the egg is cold, will cause the egg to be heated unevenly inside and out, resulting in egg breakage. That's not going to work.

It is better to boil eggs in cold water. Because if the boiled eggs are boiled in the pot, the eggs will keep rolling in the pot with the boiling water, which is easy to break the shell, and the egg whites are easy to flow out, and the taste will deteriorate. Boiled eggs should be washed first, pot under cold water, after the water is boiled, reduce the heat, and boil for another 4-5 minutes to get soft-boiled eggs; Cook for 7-8 minutes and the eggs are just fully cooked.

Remove it after 1-2 minutes, so that it is easy to peel.

Boiled eggs are rich in nutrients and have a high nutrient absorption rate, which is why they can provide rich and high-quality nutrition to the human body, but too much consumption is not conducive to health. Therefore, people of different ages and with different physical or mental work intensity need to eat different amounts of eggs per day.

If an egg is boiled in boiling water for more than 10 minutes, a series of chemical changes occur inside. The protein structure becomes tighter, resulting in a poor taste.

There are many ways to eat eggs, such as boiling, steaming, frying, and scrambling. In terms of the absorption and digestibility of egg nutrition, boiled and steamed eggs are 100%, tender fried eggs are 98%, scrambled eggs are 97%, poached eggs are used, old fried eggs are used, and raw eggs are 30% and 50% are eaten. From this point of view, boiling and steaming eggs should be the best way to eat.

Boiled eggs in cold water. Eggs are rich in protein, boiled eggs generally need to be boiled in water for about two to three minutes, and the egg whites and yolks are already cooked in two to three minutes. Then don't eat it right away, it's best to wait three to five minutes in hot water before serving!

Secondly, eggs must be cooked before eating, but they should not be boiled for too long or too short.

If the time is boiled for too long, it is easy to cause the taste to deteriorate, and the eggs will taste a little old and not very delicious; If the boiling time is too short, it may not be fully cooked, which will cause the bacteria to not be completely removed, so be sure to cook the eggs before eating.

Eggs are generally best boiled in cold water. Cold boiled eggs, as the water temperature rises, the egg shell is better to peel off after the egg is slowly cooked, the taste is more tender, and the nutrition is retained to the greatest extent. Under the action of hot water, because the egg is cold and the water is hot, the egg breaks first under the thermal expansion and cold contraction, and the egg is cracked before the egg shell is cooked, the protein overflows, the nutrients are lost greatly, and the taste is poor.

Eggs should be boiled in cold water, because if you use hot water, the eggs will not be able to stand the heat and burst, and you will not be able to cook a whole egg, and the nutrients will be lost.

Cold water!!! When boiling eggs in white water, boil the eggs in a pot under cold water, and the boiled egg shells are not easy to break. Use boiled eggs in plain water, clean the eggs, put the eggs in a pot under cold water, turn the water to low heat after boiling, and cook for 5 minutes to 8 minutes.

Cook in cold water. Boiling in hot water can cause the egg to break the skin.

Bring a pot under cold water to a boil over low heat, then cook over warm heat for another eight minutes, do not cook for too long, otherwise the nutrients will be lost.

We must remember to cook it in cold water when we cook it in the pot, so that it will not be a cracked egg. If you let him drop it directly from boiling water, he will break directly in a few minutes. In addition, when we boil eggs, we should not turn on the fire too much, just turn on the medium heat, and the boiled eggs are the smoothest and most delicious.

Boiled eggs are generally boiled in a pot under cold water, and the eggshell is not easy to break when boiled in a pot under cold water, and in the process of boiling eggs, it is necessary to boil over low heat, and then boil for 6-8 minutes over a warm fire to turn off the fire.