Can Mold Grow on Eggs

Description. Eggs affected by a fungus may have a green coating of powdery material or a black, beard-like growth on the shell. Sometimes such eggs are said to be affected by mildew.

Can eggs get moldy on the inside?

3 Answers. According to black or green spots inside the egg are the result of bacterial or fungal contamination of the egg. The use by date is only an estimate, so if your eggs are moldy, I’d bin them.

What causes Mould on eggs?

Although bacteria are more likely to cause damage during storage, mold can form in very humid storage conditions or when eggs are washed in dirty water. Molds such as Penicillium, Alternaria, and Rhizopus can appear as spots on the shell and penetrate the shell to reach the egg.