For example, Leghorn chickens lay white eggs, Orpington’s lay brown eggs and Ameraucana chickens lay blue eggs. And the “olive egger” breed lays … wait for it … olive-green eggs.

According to Brey, the cost and taste of the egg you buy – white or brown - is determined by what – and how much – is fed to the hen. “It has a lot to do with the chicken feed,” Brey said.

The answer is quite simple — egg color depends on the breed of the chicken. For example, White Leghorn chickens lay white-shelled eggs, while Plymouth Rocks and Rhode Island Reds lay brown ...

White hens make up just 8% of the UK’s egg output. ... But, over and above this, data shows that a 100-week lay is achievable in the White Leghorn, with 500 eggs a hen housed over that period.

According to Brey, the cost and taste of the egg you buy – white or brown - is determined by what – and how much – is fed to the hen. “It has a lot to do with the chicken feed,” Brey said.