When You See a Green Ring Around an Egg Yolk, It’s a Sign That…
Have you ever cracked open a boiled egg and noticed a green or grayish ring around the yolk? While it may look unappetizing, this phenomenon is usually harmless and easy to understand once you know what causes it.
🥚 1. What Causes the Green Ring?
The green ring forms due to a chemical reaction between sulfur in the egg white and iron in the yolk. This reaction happens when eggs are cooked for too long or at too high a temperature, creating iron sulfide at the yolk’s surface.
⏲️ 2. Cooking Tips to Prevent It
Avoid overcooking: Boil eggs for 9–12 minutes, depending on size.
Cool quickly: Transfer eggs to ice water immediately after boiling. This stops further cooking and prevents the green ring.
Gentle cooking: Use medium heat instead of a rolling boil.
✅ 3. Is the Egg Safe to Eat?
Yes! The green ring is purely cosmetic and does not indicate spoilage. The egg is still nutritious and safe to eat.
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