The greenish ring that sometimes forms around the yolk of a hard-boiled egg is caused by a chemical reaction between sulfur in the egg white and iron in the yolk. This reaction typically occurs when eggs are overcooked.
When eggs are boiled too long or at too high of a temperature, the sulfur in the egg white reacts with the iron in the yolk to form iron sulfide, which has a greenish-gray color. The longer the eggs are cooked, the more likely this reaction is to happen, especially if the eggs are cooked at a high temperature for a prolonged period.
To prevent the green ring, you can try:
continued on next page
I Wrote My Son Daily from a Nursing Home with No Reply until a Stranger Came to Take Me Home — Story of the Day
How To Make Stick of Butter Baked Rice
Loaded Broccoli Potato Pan Recipe
Simple and ecological tips to regain the dazzling whiteness of your clothes
Slow Cooker Pepper Steak with Mushrooms
Do not throw away the cardboard toilet paper roll, you can not imagine what you can do with it
The Forgotten History of Laundry
Secrets and The World
Whipped Honey: The One-Ingredient Wonder That Will Change Your Life