A green ring around a hard-boiled egg yolk is not mold or spoilage — it’s simply a sign of overcooking or high iron content in the cooking water.
Here’s what it means:
🟢 Why Eggs Get a Green Ring Around the Yolk
1. Overcooking
When eggs cook too long or at too high a temperature, the iron in the yolk reacts with sulfur in the white, forming ferrous sulfide, which appears as a green or gray ring.
2. High iron in water
If the boiling water has a high mineral/iron content, the green ring can form more easily.
✔️ Is it safe to eat?
Yes — completely safe.
The color change is harmless and doesn’t affect taste or nutrition.
🥚 How to Prevent the Green Ring
- Don’t overboil.
- Simmer for 9–12 minutes only.
- Cool eggs immediately in ice water to stop the cooking process.
If you want, I can give you a perfect hard-boiled egg method with no green rings at all!
