Some people are afraid to eat boiled eggs with blue spots around the yolk, and this is completely in vain.
This is not a sign that the egg has gone bad.
Yulia Arkhipova, an expert in the field of cooking, a chef and a fourth-class baker from the online publication Belnovosti, explains why blueness appears around the yolk.
The reason for the blue color around the yolk is that it is cooked too long.
When cooked for more than 10 minutes, iron and sulfur are released from the yolk, forming iron sulfide, which gives the blue color.
This is a purely aesthetic defect; such eggs can be eaten without fear.
Hard-boiled eggs need to be boiled for 7-8 minutes after the water boils, then there will be no blue tint.
Earlier, the expert told how to make yeast dough with water.