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
The Best Classic Patty Melt Recipe
Discover the Wonders: Boiled Melon Seed Tea
9 Natural Secrets for a Brighter Smile: Removing Plaque and Tartar
How to Get a Ring off When It’s Stuck
The Recipe That Saved My Life 17 Years Ago: How I Defeated a Tumor in the Liver and Colon
I’m never using any other method again!
My version of Homemade Pizza Dough
Bread rolls: the recipe for fried and baked rolls
New York AG takes 1st step toward possibly seizing Trump’s assets as part of $464M fraud judgment