Eating rotten eggs is harmful to the human body and can cause bacterial food poisoning. The process of a fresh egg turning into a rotten egg is a process of continuous decomposition and consumption of its own nutrients. It is also a process in which the bactericide originally present in the egg white gradually disappears. Various microorganisms gradually invade the egg to grow and reproduce, and finally completely disintegrate the ingredients in the egg. The process of corruption and stinking.

Eating rotten eggs can cause nausea, vomiting, abdominal pain, diarrhea and other toxic symptoms. The smell of eggs is caused by these substances. Even after cooking, the amines, nitrites, bacterial toxins, etc. in rotten eggs still exist, which can cause poisoning symptoms such as nausea and vomiting after eating. Eating too much rotten eggs can also induce cancer, because nitrite and bacterial toxins are human carcinogens. Therefore, eggs cannot be eaten after they have gone bad.

Inedible eggs

Loose yolk eggs: due to violent vibrations such as transportation, the yolk membrane ruptures, causing mechanical loose yolk; or stored for too long, bacteria or mold pass through the eggs. The shell pores invade the egg body, destroying the protein structure and causing the egg liquid to become thin and turbid. If the yellowing is not serious and there is no peculiar smell, it can still be eaten after high-temperature treatment such as boiling. However, if bacteria multiply in the egg and the protein has been denatured, it cannot be eaten if there is a smell.

Stillborn eggs: Eggs that are contaminated by bacteria or parasites during the incubation process, coupled with poor temperature and humidity conditions, cause the embryo to stop developing are called stillborn eggs. The nutrients contained in such eggs have changed. If they die for a long time, the protein will be decomposed and a variety of toxic substances will be produced, so they should not be eaten.

Moldy eggs: When some eggs are exposed to rain or moisture, the protective film on the surface of the eggshell will be washed away, allowing bacteria to invade the inner surface of the egg and become moldy and deteriorate, resulting in black spots and mold on the eggshell. It is also not advisable to buy hatching eggs for consumption.

Reference for the above content: China News Network - 6 types of eggs must not be eaten. Loose yolk eggs may be due to bacterial invasion