A red spot in an egg can be surprising: here's what that little dot is and whether you can eat it

That little dot is almost always a small spot of blood, also called a blood spot. It can be found on the surface of the yolk or, more rarely, in the egg white. It’s not a mysterious ingredient, nor is it something that appeared during cooking: it forms while the egg is still inside the hen.

It’s usually very small—so small that it sometimes looks like nothing more than a ruby-colored freckle. Seeing it may come as a surprise because we’re used to perfectly uniform yolks, but this unusual appearance doesn’t automatically mean there’s a food safety issue.

During egg development, a tiny blood vessel may rupture—for example, at the time of ovulation, when the yolk is released. A drop of blood becomes trapped inside the egg and becomes visible when we crack the shell.

Sometimes the mark appears bright red; other times, it is darker or brownish. There are also small specks of tissue, often called “meat spots,” that can look similar. These are occasional occurrences during normal egg formation and are not evidence that anything alarming has happened on the farm.

No: blood in the yolk and fertilization are not the same thing. The red spot is not an embryo and does not indicate the presence of a developing chick. Fertilization requires the presence of a rooster, while a small trace of blood can also appear in an unfertilized egg.

Eggs typically sold in supermarkets generally come from hens raised without roosters. So, if you notice that little spot while making an omelet, you haven’t discovered an egg that’s going to hatch—you’ve simply come across a rare occurrence.

Yes, as long as it’s just a small blood spot and the egg has been stored properly. The presence of the spot alone does not mean the egg is spoiled or unfit for consumption. If it bothers you, you can remove it with the tip of a clean teaspoon without having to discard the entire egg.

However, it’s still important to cook the egg thoroughly: well-cooked whites and yolks help reduce the risk associated with bacteria such as Salmonella. You can’t determine whether an egg is safe just by looking at the red spot; you need to evaluate the egg as a whole.

• An unpleasant or unusual odor as soon as you crack the shell.
• Egg white that is pink, greenish, or iridescent, rather than its usual color.
• Black or green spots inside the raw egg, other than a single red dot.
• A shell that is already cracked at the time of purchase or has been stored improperly.

Not all the unusual features you see when cracking an egg have the same meaning. A single red dot on the yolk is quite different from a widely pinkish or iridescent egg white: the latter may indicate spoilage and should not be consumed.

The white, twisted strands that appear to connect the yolk to the white, on the other hand, are chalazae: natural structures that help keep the yolk in place. And if you notice a green ring around the yolk of a hard-boiled egg, it’s often due to prolonged cooking, not a blood spot.

No, a blood spot is not a reliable indicator of an egg’s age. It can appear even in a very fresh egg. Similarly, a runnier egg white can be a natural result of aging and does not, on its own, indicate that the egg is spoiled.

To assess freshness, the most important factors are the date on the package, storage conditions, and the integrity of the shell. In short, the red spot is not a hidden calendar inside the yolk.

The well-known "floating egg" test can give you an idea of an egg's age, but it does not guarantee its safety. Over time, the air pocket inside the egg expands, and the egg may float more easily. This does not automatically mean the egg is spoiled, just as sinking does not guarantee the absence of bacteria.

If you have any doubts, don’t rely on just one trick: check the packaging, storage conditions, and appearance after cracking the egg into a separate small bowl.

In Italy, eggs can be displayed at room temperature at the store. Once you get home, however, it’s best to store them in the refrigerator, keeping them in their original packaging and away from ready-to-eat foods. Avoid constantly moving them between cold and warm temperatures, and always check the date on the package.

There’s no need to wash the shell before storing the eggs—doing so could compromise their natural protection. After handling raw eggs, wash your hands, utensils, and surfaces. For tiramisu, mayonnaise, and other uncooked dishes, opt for pasteurized eggs or egg products, especially if they will be consumed by vulnerable individuals.

The most helpful tip is very simple: crack each egg into a small bowl before adding it to the other ingredients. That way, you can check its appearance and smell without compromising the entire batter.

If everything looks normal and you notice only a small speck of blood, you can leave it in or remove it with a clean utensil. Then proceed to cook the omelet as usual. This way, the red speck remains just that: a quirk of nature, not a reason to give up on your omelet.