Have you ever peeled a hard-boiled egg, sliced it open, and noticed a greenish-gray ring surrounding the yolk?
Many people assume it means the egg is spoiled or unsafe to eat. Fortunately, that’s usually not the case. The mysterious ring is actually the result of a completely natural chemical reaction that occurs during cooking.
What Causes the Green Ring?
The discoloration forms when eggs are cooked for too long or at excessively high temperatures.
As the egg cooks, sulfur in the egg white reacts with iron in the yolk. This
