Shell membrane is a fiber membrane wrapped around protein, and it is an organic fiber net composed of tough keratin. The shell membrane is divided into two layers: the shell membrane is thick and close to the eggshell, which is an opaque and unstructured membrane, and its function is to prevent water from evaporating from the egg contents; The inner shell membrane is about 1/3 of the thickness of the former, and it is attached to the inner layer of the outer shell membrane, through which air can freely pass. The inner shell membrane and the outer shell membrane are mostly closely combined, and only the blunt end of the egg is separated to form an air sac. The air cavity does not appear until after the egg is laid, because the temperature difference between the inside and outside of the body shrinks, forming a gap between the shell and the membrane; If the water in the egg is lost, the air chamber will continue to increase; When a fertilized egg hatches, it increases with the development of the embryo.
You can eat it if you like. It's harmless to your health. It is not good to eat.
1. The membrane in the eggshell exists to protect the yolk and protein inside. It is a kind of disposable garbage, which can be eaten, but it is not delicious, harmless to human body and has no nutrition.
2, that layer of film can be very beautiful, torn off and attached to the corner of the eye, which can play the role of wrinkle removal, much better than directly wiping your face with egg white.
Stick that film on the black head on the nose, and the effect is very good after several times.