You crack open a fresh egg and notice a small red or reddish-brown speck floating in the egg white or resting on the yolk. The first reaction is usually alarm: Is this bl00d? Is the egg spoiled? Could it make me sick?
The answer, according to food science and poultry biology, is more reassuring than you might think.
What are bl00d spots, scientifically?
A bl00d spot occurs when a small bl00d vessel in the hen’s ovary or oviduct ruptures during ovulation. When the yolk is released, a tiny amount of bl00d may leak into the developing egg. This becomes visible as a red or rusty-brown dot.
Less commonly, the spot may be a “meat spot”, which is actually a tiny piece of tissue from the reproductive tract of the hen. These appear more brown, tan, or gray and may look irregular or “floaty.”
These spots:
- Are not embryos
- Are not a sign of fertilization
- Are not a sign of infection
- Are a normal, natural biological occurrence
They are seen more often in brown eggs than white eggs, simply because they are harder to detect during commercial cleaning and inspection.
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