yolk after hard-boiling: This happens when eggs are overcooked. The greenish-gray ring is a chemical reaction between the iron in the yolk and the sulfur in the egg white. It’s harmless but not very attractive.
What About Parasites in Eggs?
This is a common fear, and it’s understandable. The idea of eating something that might contain a parasite is genuinely unsettling.
Here’s the good news: eggs are remarkably safe.
The USDA and the FDA strictly regulate commercial eggs in the United States. All commercial eggs are washed, graded, and inspected.
