Most eggs are unfertilized that you buy from mass-produced factory farms and grocery stores. Most eggs that you buy from a local farm are probably fertilized. Chickens lay eggs because that is their cycle. There is no such thing as fertilization of the egg after its hatched.
Also, can you hatch supermarket eggs? Typically, supermarket eggs (of any variety) are unfertilized and thus cant hatch. Fertilized eggs, if exposed to the right conditions, can indeed hatch.
Furthermore, can I eat fertilized chicken eggs?
It is perfectly okay to eat fertilized eggs. Also, as mentioned in the previous paragraphs, once the fertilized egg is stored inside the fridge, the embryo no longer undergoes any change or development. Rest assured that you can eat your fertilized chicken eggs just fine like the unfertilized ones.
Can you hatch eggs without an incubator?
However, most hens used for laying eggs have had this motherly instinct bred out of them. Many will walk away before the chicks hatch. Building a homemade incubator with some common household items to hatch eggs is, therefore, the ideal solution for those without an incubator. Eggs generally take 21 days to hatch.