1. Cracked egg eggs During transportation, storage and packaging, due to vibration, extrusion, etc., some eggs cause cracks and cracks, which are easily invaded by bacteria. If they are left for a long time, they are unfit for human consumption.
2, sticky shell eggs This type of egg because of the storage time is too long, the yolk film from the tough to weak, the egg yolk close to the eggshell, if the local was red can also eat, but the egg membrane close to the eggshell is not moving, stick outside the skin was Dark black, and smelly, it is not appropriate to eat.
3, rotten eggs due to bacteria invade the eggs within a large number of breeding, resulting in deterioration, gray eggshell, or even the eggshell due to internal hydrogen sulfide gas expansion and rupture, and the mixture within the egg was grayish green or dark yellow, and with evil Odor, this egg can not be eaten, otherwise it will cause bacterial food poisoning.
4, scattered yellow eggs due to transport and other intense oscillations, yolk membrane rupture, causing mechanical dissipating yellow; or storage time is too long, by bacteria or mold through the egg shell pores invade the egg body, and destroy the protein structure caused by scattered yellow, egg Diluted cloudy. If the scattered yellow is not serious, no odor, after boiling and other high-temperature treatment can still be edible, but if bacteria reproduce in the egg, the protein has been degeneration, there is no smell can not eat.
5, dead fetal egg eggs in the incubation process due to bacterial or parasite contamination, coupled with the temperature and humidity conditions are not good and other reasons, leading to the embryo to stop the development of eggs called dead fetus eggs. The nutrients contained in this egg have changed, and if it dies for a long time, the protein will be decomposed and produce a variety of toxic substances, so it is unfit for human consumption.
6, moldy eggs and some eggs were exposed to rain or moisture, will wash the protective film on the surface of the eggshell, so that bacteria invade the moldy surface of the egg surface, resulting in black spots on the eggshell and mildew, this egg should not buy food .
In addition, there are diarrhea yellow eggs, blood tendons eggs, etc. should generally not be purchased for consumption.
2, sticky shell eggs This type of egg because of the storage time is too long, the yolk film from the tough to weak, the egg yolk close to the eggshell, if the local was red can also eat, but the egg membrane close to the eggshell is not moving, stick outside the skin was Dark black, and smelly, it is not appropriate to eat.
3, rotten eggs due to bacteria invade the eggs within a large number of breeding, resulting in deterioration, gray eggshell, or even the eggshell due to internal hydrogen sulfide gas expansion and rupture, and the mixture within the egg was grayish green or dark yellow, and with evil Odor, this egg can not be eaten, otherwise it will cause bacterial food poisoning.
4, scattered yellow eggs due to transport and other intense oscillations, yolk membrane rupture, causing mechanical dissipating yellow; or storage time is too long, by bacteria or mold through the egg shell pores invade the egg body, and destroy the protein structure caused by scattered yellow, egg Diluted cloudy. If the scattered yellow is not serious, no odor, after boiling and other high-temperature treatment can still be edible, but if bacteria reproduce in the egg, the protein has been degeneration, there is no smell can not eat.
5, dead fetal egg eggs in the incubation process due to bacterial or parasite contamination, coupled with the temperature and humidity conditions are not good and other reasons, leading to the embryo to stop the development of eggs called dead fetus eggs. The nutrients contained in this egg have changed, and if it dies for a long time, the protein will be decomposed and produce a variety of toxic substances, so it is unfit for human consumption.
6, moldy eggs and some eggs were exposed to rain or moisture, will wash the protective film on the surface of the eggshell, so that bacteria invade the moldy surface of the egg surface, resulting in black spots on the eggshell and mildew, this egg should not buy food .
In addition, there are diarrhea yellow eggs, blood tendons eggs, etc. should generally not be purchased for consumption.
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