
Boiled egg yolk turns dark green
The reason why the yolk has a green layer?
Actually, the green layer on the egg is due to the way it is boiled, not because the egg has any strange substance. When we boil/steam the egg too much, this green color will appear. That is because under the influence of heat for too long, the hydrogen sulfide (H2S) in the egg white will react with the iron in the egg yolk, forming iron sulfide FeS which is blue-black.
That is why the green layer is created on the yolk, where it comes into contact with the egg white, while the yolk inside remains yellow and does not turn green all over the yolk.
This green color is not harmful to the health of the eater. If you boil the egg too much, the taste of the egg will not be as good as when it is boiled just right, and the egg will be drier, so it will not be as soft and creamy as when it is boiled just right or boiled with the yolk.
If you do not want the green layer on the yolk of a boiled egg, simply do not boil the egg for too long. If you like the rich taste of hard-boiled eggs, stop at 11 minutes and turn off the heat.
If you want your eggs to be well-done, boil them for only 9 minutes. For soft-boiled eggs, 3 minutes is a good amount of time. You can wait 5 minutes if you want the yolk to start to thicken or 7 minutes for the yolk to be cooked but still pink in the middle.
News in the same category


Why do hotels always have a cloth across the bed?

A Tiny Seed with Mighty Benefits

Don't put ginger, garlic, and chili in the refrigerator: Store them this way to keep them

The non-stick coating of the rice cooker has peeled off after long use. Is it harmful to use it?

"Why I Only Charge My iPhone to 80% Instead of Fully Charging" – Everyone's Got It Wrong; Fully Charging Isn’t Always Best

The insect, the size of a grain of rice, is 12 to 15 times more toxic than cobra venom

Don't keep these 4 things

Why are there fly designs painted on toilets at Amsterdam airports?

Does the black part on the shrimp's head contain roe or feces? Experts explain the con.tro.versy

What Does a Forehead Kiss Mean? 10+ Reasons Behind This Personal Peck

The Purpose of the Notch on Scissors: Many Homemakers Don’t Know How to Use It—What a Shame!

The photo that made millions of people cry about the profession considered the di.rtiest in the world

Whole family hospitalized after eating watermelon left overnight in the refrigerator: Mistakes in preserving watermelon that many people make

The "Secret" of the Small Hole on a Vegetable Peeler That Made Me Realize My EQ Has Been at Rock Bottom for 10 Years!

Aftershocks: How Dang.erous Is the “Ghost” After an Earthquake and What You Need to Do to Protect Yourself

Never keep these 4 relics

From the earthquake in Myanmar, what do experts warn about high-rise buildings?

Why do hotels allow check-in at 2:00 PM but require check-out by 12:00 noon the next day?

Jonathan, a tortoise hatched around 1832, is the world's oldest known living land animal, aged 191 years
News Post

Two strange points of headache warn of brain tumor, don't ignore

Put Your Quick Wit to the Test: Can You Solve This Brain Teaser?

5 Drinks That Damage the Liver Faster Than Alcohol

Limit Chicken and Beef in April, Prioritize These 3 Nutritious Meats

The Perfect Family Meal with a Hidden Twist

Using a Small Plastic Bag This Way Will Eliminate Unpleasant Odors from Your Bathroom and Kitchen Drains

5 Foods That Are Considered "Parasite Havens" – Some of Which Are Very Popular

3 types of water that shouldn't be stored in a thermos

Tips to get rid of ants from your house without spending a penny

49 red lights. 1 bro.ken heart. Zero chill

10 minutes of jogging or 1 hour of walking: Which is the golden choice for health and longevity?

You’ll keep her/him satisfied all night long with this powerful mix...

Eating eggs with avocado for breakfast

You're looking for natural remedies

Boost Your Morning with a Game-Changing Coffee and Egg Combo

See a Doctor Immediately as You May Have Meningococcal Meningitis

When buying eggplants, should you choose curved or straight ones? Growers share 4 tips

Experts Advise Keeping These 3 Things in Mind When Eating It

The U.S. Lists 5 'Enemies' of the Kidneys and Urges People to Avoid Them
