2. For those frozen eggs that have just been taken out of the refrigerator, it is not ideal to blanch them with boiling water, because under the action of heat expansion and cold contraction, the shells of frozen eggs will soon break after being put into the pot, resulting in the incompleteness of cooked eggs and the loss of nutrients in eggs. If you want to cook them in boiling water, you'd better soak them in warm water for five minutes first. If you are afraid of trouble, you can cook it directly in cold water.