she says the colour of the yolks is the result of the birds’ feed not the breed.
“i have brown, white, black and white spotted, and solid grey chickens,” says grilo. “the outside of the eggs is all different — blue, white, brown, speckled — but the insides all look the same.”
eggshells come in a variety of colours and depends on the chicken breed. source: chickens in the six
speirs agrees, noting that the colour of the yolks can range from pale if fed a wheat-based diet, to dark if fed a corn-based diet.
“eggshell colour depends on the breed, and, more specifically, the colour of the hen’s earlobe,” she says.
grilo keeps all her eggs in one basket on the counter, unrefrigerated, for up to a month. when an egg is laid, it is covered with a wet film, which when dry forms a protective cover over the porous shell.
“in canada, eggs go through an egg washing station to clean and sanitize them before they can be sold in stores,” says speirs. “however, this process removes the natural protective outer layer, called a cuticle. without the cuticle, eggs need to be refrigerated to discourage bacterial growth.”
meat chickens grow big quite quickly, so you don’t have to feed them for as long before processing. they’ll also lay eggs, but not as frequently as egg-layers. dual birds are simply prolific layers you can eat at the end of their laying life.