Eggs are one of the indispensable foods in our daily diet. When you go to the supermarket or farmer's market to buy eggs, you will find eggshells of different colors, white, brown, yellow, and even green. So, why do eggshells have so many different colors? Let's take a look.
First of all, we need to be clear that the color of an eggshell does not affect its nutritional value and taste. In fact, they are only differences in surface gloss, color, and texture, and have nothing to do with the quality of the eggs.
So, what determines the color of an eggshell? Actually, it has to do with the process of egg production and the breed of chicken. Most eggs are white or light brown because the eggshells produced by the baby money breed hens are lighter in color, such as the common white-fleshed black chicken.
However, some specific breeds of eggs will have different colors. For example, some varieties of native chickens, black chickens, Silk Road chickens, etc., the eggshell color they produce will be darker, some dark brown or dark green, this is because these breeds of chickens produce some color pigments, so the color of the eggshell will change accordingly.
In some places, people will boil eggs green, in fact, this is because when they come into contact with sulfur, sake lees and other substances, the eggshell will be stained green, but this treatment will not affect the nutritional content of the eggs themselves.
When buying eggs, we don't need to pay too much attention to factors such as size, shape or color, but we need to pay attention to factors such as the quality and freshness of the eggs themselves. A good egg should have a smooth and uniform appearance, a hard shell, a full and bright yolk after breaking, a transparent and firm white part, and no peculiar smell.