Have you ever been curious if there are any differences between brown and white eggs? Lots of people say that brown eggs are better than white eggs in terms of taste and nutritional content. So, if you try to look at their external appearance, we can say that they differ in color because brown eggs are brown and white eggs are white. Seriously, they are the same on the inside even in their nutrient content. They also have the same shell thickness; however, it’s just that young chickens lay eggs with shells that are usually harder than older chickens’ eggs, but this is true for both white and brown egg layers.
In reality, brown eggs cost more than white eggs because the hens that lay them ate more compared to the hens that lay white eggs. White eggs are simply more cost-effective than brown eggs. As an observation, white eggs are most often laid by white or light colored hens with white ear lobes, while brown eggs are most often laid by red-feathered or brown/dark-feathered chickens with red ear lobes. So, the ear lobe serves as the indicator and not the feathers. There was a saying that brown eggs tastes better than that of white eggs but the truth is that white egg / brown egg taste difference is just a myth. As long as there were people that keep on buying the more expensive eggs and are willing to pay high prices when you factor in the cost of the extra feed, farmers will keep raising chickens that lay them. Hence, the quality of an egg depend on how they are being raised and produced.
To summarize it, even if there are small ways the composition and taste of chicken eggs can be influenced, the color of the egg shell isn’t one of them.