The eggshell of artificial eggs is mainly made of calcium carbonate and other raw materials added to the mold; the egg white is made by adding sodium alginate to water to form a solution and then stirring continuously; the main component of the egg yolk is also Sodium alginate liquid is formed by adding pigments such as tartrazine, putting it into a mold, and then putting it into a calcium chloride solution to solidify. The production cost of artificial eggs is only about 25% of the selling price, so they are banned again and again. It is found in Beijing, Shandong, Guangdong and other places. Not only do artificial eggs have no nutritional value, but long-term consumption can lead to serious consequences such as memory loss and dementia. The appearance, color and weight of artificial eggs are similar to real eggs, but they do not have the fishy smell that eggs should have. After the artificial egg is cooked, the yolk cannot be broken and is very elastic. General consumers can use the following methods to tell the authenticity of eggs: artificial egg shells are brighter, while real egg shells are rougher; because water will overflow from the coagulant, there will be a sound when shaking; there is no fishy smell of real eggs; knocking When cracked, the sound of fake eggs is muffled; after opening, the yolk and egg white will melt together; when beating poached eggs, the egg yolk and egg white will become yellow in the pot.