A meat spot is a small brownish or tan piece of tissue floating in an egg’s white. It looks like a tiny fleck of meat, which is how it got its name. These spots are harmless bits of tissue that came loose from the hen’s reproductive tract during egg formation. They’re one of the most common visual oddities people encounter when cracking eggs, and while they can be off-putting, they don’t indicate a bad egg.
Where Meat Spots Come From
Most meat spots are small fragments of tissue that sloughed off from the lining of the hen’s oviduct, the long tube where an egg is assembled over roughly 25 hours. As the egg moves through this tube, it picks up layers of egg white, membranes, and shell. Occasionally, tiny pieces of the oviduct wall break free and get trapped inside the egg white as it forms around the yolk.
Some meat spots start out as blood spots that have chemically changed over time. When a small blood vessel ruptures during egg formation, it can leave a red spot on the yolk or in the white. As the egg ages, the yolk absorbs water from the surrounding white, and these blood spots lose their red color, turning brown and becoming harder to distinguish from true tissue-based meat spots. According to USDA documentation, though, most meat spots come from shed tissue rather than old blood spots.
Meat Spots vs. Blood Spots
People often confuse the two, but they’re different in origin, appearance, and location. Blood spots are bright red or dark red and typically sit on the surface of the yolk, caused by a blood vessel rupturing as the yolk is released from the ovary. When blood spots appear in the egg white instead, the bleeding likely occurred after the egg entered the oviduct.
Meat spots, by contrast, are brownish, tan, or reddish-brown. They’re almost always found floating in the egg white rather than attached to the yolk. Under a microscope, they consist of brownish deposits, necrotic tissue, or cellular debris. If you crack an egg and see a pale brown speck drifting in the white, that’s most likely a meat spot. A vivid red dot on the yolk is a blood spot.
Why Some Eggs Have Them More Often
Several factors influence how frequently meat spots show up. The biggest ones are the hen’s age, breed, and shell color.
- Hen age: The frequency of both blood and meat spots increases as hens get older. One study found that the rate climbed by roughly 20% between 22 and 67 weeks of age. This happens because the oviduct lining gradually deteriorates with use, making it more prone to shedding tissue fragments. Inflammation in the oviduct also becomes more common in older birds.
- Shell color and genetics: Brown-egg breeds produce meat spots at notably higher rates than white-egg breeds. The difference isn’t about the shell color itself but about genetic factors that vary between breeds and even between strains within the same breed. Researchers have found that the occurrence of these spots appears to be under significant genetic control.
- Nutrition and stress: The hen’s diet and overall health also play a role. Nutritional deficiencies and environmental stressors can increase the rate of tissue shedding in the oviduct.
If you buy brown eggs from backyard or pastured hens, you’ll likely encounter meat spots more often than someone buying white supermarket eggs. That’s normal and says nothing about the quality of the farm or the health of the flock.
How Commercial Producers Screen Them Out
Before eggs reach store shelves, they go through a process called candling. Originally, this meant holding each egg up to a candle flame to see inside the shell. Modern egg packing facilities use automated mass-scanning equipment instead: eggs travel along a conveyor belt and pass over mechanical sensors integrated with computerized systems. These systems use cameras and even sound wave technology to detect internal defects like meat spots, blood spots, and cracked shells, then automatically sort out defective eggs.
This is why meat spots are relatively rare in store-bought eggs, especially white ones where the thinner, translucent shell makes defects easier to detect during scanning. Brown shells are darker and harder to see through, so some spots slip past the scanners. Under USDA grading standards, eggs with large meat spots are classified as a loss and removed from the consumer supply. Small spots may occasionally get through.
Are They Safe to Eat?
Meat spots are safe to eat. They’re just tiny bits of the hen’s own tissue, not a sign of contamination, fertilization, or spoilage. The egg itself is perfectly fine. If the appearance bothers you, you can scoop the spot out with the tip of a knife or spoon before cooking. It takes a second and doesn’t affect the rest of the egg at all.
The spots have no meaningful impact on flavor, texture, or cooking performance. You can scramble, fry, bake, or whip the egg as you normally would. In dishes where appearance matters, like a clear consommé or a delicate poached egg, removing the spot before cooking keeps things looking clean. For everything else, most people never notice it once the egg is cooked.