Why does a green ring appear around hard-boiled eggs?

How to Boil Perfect Eggs — Without the Green Ring

Ever peeled a boiled egg only to find a green-gray ring around the yolk? Don’t worry — it’s not spoilage,

just a harmless reaction between iron and sulfur that happens when eggs are overcooked. Luckily, a few simple tweaks can fix that for good.

The No-Fail Boiling Method:

Start Cold: Place eggs in a pot and cover with cold water, about 1–2 inches above.

Heat Gently: Bring to a rolling boil over medium heat, then immediately turn off the heat.

Let Sit: Cover and leave the eggs in the hot water:

9 minutes for soft yolks

11–12 minutes for firm yolks

Cool Fast: Transfer eggs to an ice bath for at least 5 minutes to stop cooking and make peeling easier.

Peel Under Water: Gently crack and peel the cooled eggs under running water for best results.

Pro Tips:

Use slightly older eggs (5–7 days) for easier peeling.

Add vinegar or salt to the water to help prevent cracking.

Store unpeeled eggs for up to a week; peeled eggs, 2–3 days.

Enjoy Them: Slice on salads, mash into deviled eggs, or snack with salt and pepper.

Key to Success? Perfect timing — and an ice bath.

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