The nutritional value of eggs is extremely rich, and people hold them in the highest regard. Almost every household keeps some eggs on hand, as they last for a long time without spoiling. A fried egg for breakfast is the most nutritious and delicious food. However, precisely because of this high demand for eggs, many mistakes are made in their consumption. Are eggs really not spoiled after being stored at home for so long?
In fact, eggs are not immune to spoilage. For example, these 6 types of eggs should not be eaten.
Cracked Yolk Eggs
Cracked yolk eggs refer to eggs where the yolk is no longer round due to violent shaking during transportation (mechanical cracking), or where the yolk has broken due to the invasion of bacteria or mold through the shell's pores over a long storage period, which damages the protein structure, resulting in thin and cloudy egg whites. If the yolk is only slightly cracked and there is no odor, it can still be eaten after being cooked at high temperatures. However, if bacteria have multiplied inside the egg, the protein has denatured, and there is a foul smell, it should not be eaten.
Cracked Shell Eggs
Cracked shell eggs have fine cracks in their shells. These eggs are easily invaded by bacteria. If they have been stored for a long time, they should not be consumed.
Stuck-to-the-Shell Eggs
Stuck-to-the-shell eggs are usually stored for a long time, causing the yolk membrane to weaken and the yolk to stick to the shell. If only a portion is red, it can still be eaten. However, if the yolk membrane is firmly stuck to the shell and the stuck area is dark black with an odor, it should not be consumed.
Rotten Eggs
Rotten eggs are caused by the massive proliferation of bacteria inside the egg, leading to spoilage. The eggshell becomes a dark grayish color, and may even rupture due to the expansion of internal hydrogen sulfide gas. The contents inside will be a grayish-green or dark yellow color with a foul odor. This type of egg is inedible and can cause bacterial food poisoning.
Dead Embryo Eggs
Dead embryo eggs are eggs in which the embryo's development stops due to contamination by bacteria or parasites, combined with unfavorable temperature and humidity conditions. The nutritional content of this type of egg has changed. If the embryo has been dead for a long time, the protein will decompose, producing various toxic substances, so it should not be eaten.
Moldy Eggs
Some eggs are exposed to rain or moisture, which washes away the protective film on the shell's surface, allowing bacteria to invade and causing the egg to become moldy and spoiled. This results in black spots and mold on the shell. This type of egg should not be purchased or consumed.
Have you ever eaten any of these types of eggs? These eggs are absolutely inedible; eating them will only harm our bodies and have adverse effects on our health. As for their original nutritional value, it has long since spoiled along with the egg's deterioration. Nutritious and delicious eggs must never be allowed to become poisonous eggs.