A, boiled eggs when the eggshell is easy to break, most of the reasons are caused by the impact of the egg. Egg shells are very brittle and break easily, coupled with a gentle impact, egg shells crack easily, coupled with the principle of heat expansion and cold contraction, egg shells will break. Whether it is the impact between the egg and the egg, or the direct impact between the egg and the pan, it is easy to die causing the egg shell to crack. When boiling eggs, to reduce this impact of the egg, the egg shell is less likely to crack.

Many people cook a few eggs, add a lot of water, eggs in the water boiling will be with the boiling water scurry up, an accident will occur collision, broken shell. So we cook eggs, do not need to put too much water, can put the egg most submerged on the line. Cover the lid to increase the pressure when boiling eggs. Eggs do not roll around, it is not easy to break the shell.

Two, hot and cold meet, the egg shell can not stand the stimulation is also very easy to break the shell. This is related to the way the eggs are preserved. Eggs in the spring are not easily spoiled and only need to be kept at room temperature. When cooking, eggs can be added to the pot when the water is cold. Some people will wait for the water to boil, which also tends to break the shell. In summer, eggs are easy to deteriorate, need to be preserved at low temperatures, many people will choose to put the eggs in the refrigerator, this kind of eggs before cooking before removing, with room temperature water soak, and then cold water in the pot to cook. Relatively speaking, the chances of a boiled egg breaking shell in summer are slightly higher.

Three, the egg itself. Some people cook eggs, because they do not look at the eggs whether there are cracks, washed and put into the pot to cook. At this time, because of the heat expansion, the egg liquid will swell the eggshell, and it also looks like boiled broken. Of course this is relatively rare.

Boiled eggs are easy to break, most of the factors are caused by the "collision" of the eggs, and a few are their own influence. When you boil an egg, you don't need too much water to cook it. Generally speaking, the boiling time of eggs is controlled, and the amount of water does not have much to do with it. Boiled eggs in plain water, eggs boiled for 3 minutes to 5 minutes, most of the loose eggs, commonly known as: sandwich eggs; boiled for 8 minutes to 10 minutes, generally can be cooked. Of course, the refrigerator to save the eggs, appropriate to add a little time ha.