Caged Eggs : Battery cages are the predominant form of housing for laying hens worldwide. They reduce aggression and cannibalism among hens, but are barren, restrict movement, prevent many natural behaviours and increase rates of osteoporosis.Densely populated birds are forced to live in very dirty,filthy & unhygienic environment to save feed,manpower,space,electricity etc.

Cage-free Eggs : Unlike battery cages, the hens are housed humanely in cage-free enclosures on deep litter.They are free to move,socially interact and rest on special wooden perches.They have ample access to sunlight and natural environment.

Free Range Eggs : Free-range eggs are eggs produced from birds that may be permitted outdoors.They have lot of free space,lot of fresh air and area for playing.They may travel in and out of the shed at free will.The chances of viral & bacteria disease is more in free range,since they can come in contact with wild birds & other animals.

Occasionally found on an egg yolk. These tiny spots do not indicate a fertilized egg. Instead, they are caused by the rupture of a blood vessel on the yolk surface during formation of the egg or by a similar accident in the wall of the oviduct due to stress,frightening,disturbances etc.

It's actually a little malfunction on the part of the hen. These are usually little bits of the lining of the oviduct which got shed during the egg formation but some may be rupture of a blood vessel on the yolk surface when it's being formed or by a similar accident in the wall of the oviduct. Eggs with blood spots and meat spots are fit to eat.

Lying between the eggshell and egg white, these two transparent protein membranes provide efficient defense against bacterial invasion. If you give these layers a tug, you’ll find they’re surprisingly strong. They’re made partly of keratin, a protein that’s also in human hair.

Interestingly, in some hens that lay brown eggs, eating too much canola or rapeseed meal can cause a fishy smell in the eggs. Not all hens are affected by the process that causes the smell. The smell is caused by the accumulation of trim ethylamine (TMA) in the yolk. Most hens metabolize the TMA into another (odorless) compound, but brown egg layers don't do that as efficiently, so when feeding canola meal, in some cases you may end up with fishy smelling eggs.

Egg yolks range in color from pale yellow to deep orange. The color of an egg’s yolk depends solely upon the hen’s diet. The darker color of a yolk signals the presence of carotenoids, which are natural pigments found in some plants. The availability of carotenoid-rich plants for chickens’ consumption affects the “orangeness” that you see in their eggs yolks. Keep in mind that chickens should be fed a diet with plant proteins as well as vegetable and grain-based ingredients, but the presence of carotenoids in hens’ diets is the main determinant of color.

Desi eggs are eggs produced by Country/Desi Chickens in India.Desi chickens are very small in size and compared to commercially raised and organic chicken, its eggs are usually small in size & they also lay very few eggs in a year. One of the most obvious differences in between commodity eggs and Desi eggs is the shell & yolk color. Desi eggs are off-whitish or a light brown in egg shell colour whereas most commodity eggs are white shelled.

It is often noted that eggs are still good to eat long after the expiration date. The shelf life of an unrefrigerated egg is 7 to 10 days and for refrigerated egg it's about 30 to 45 days.