Eggs are a staple in many households, known for their versatility and nutritional value. However, it's essential to remember that not all eggs are safe to consume. Even though eggs have a relatively long shelf life, they can sometimes harbor hidden dangers. If you notice any of the following four signs on an egg's shell, it’s best to discard it immediately to avoid the risk of foodborne illness.

1. Cracks in the Shell
A cracked eggshell is one of the most obvious signs that an egg is no longer safe to eat. When the protective shell is damaged, bacteria such as Salmonella can easily enter the egg and contaminate it. Even if the crack seems small, it’s better to be safe than sorry. Eggs with cracks should be thrown away immediately.

2. Powdery or Slimy Coating
If you notice a powdery or slimy film on the surface of an egg, it could indicate that the egg has gone bad. This film can be a sign of mold or bacterial growth, which can lead to serious health problems if consumed. Even if the egg appears normal on the inside, it’s better to discard it to avoid any potential health risks.

3. Unusual Odor
A bad egg will often have a distinct foul smell. If you crack an egg and it has an unpleasant or sulfur-like odor, it’s a clear sign that the egg is spoiled. This odor comes from bacteria breaking down the egg’s proteins. It’s important not to ignore this smell, as consuming a rotten egg can lead to food poisoning.

4. Discoloration or Irregular Spots
Eggs should have a consistent, clean shell color, whether white or brown. If you notice irregular spots or discoloration, it may be a sign of contamination or an issue during the egg's production. Sometimes, these spots can be linked to mold or bacteria, which can make you sick. When in doubt, it’s better to dispose of the egg rather than risk your health.

Conclusion
Although eggs are an affordable and nutritious food source, they should always be checked for these signs before consumption. Cracked shells, unusual coatings, unpleasant odors, and discoloration are all red flags indicating that an egg may no longer be safe to eat. Don’t be stingy—throw away eggs that exhibit any of these signs to protect yourself and your loved ones from foodborne illnesses. Remember, it’s always better to be cautious when it comes to food safety!