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The green layer around the yolk of a hard-cooked egg comes from the chemical reaction of the iron in the yolk with the sulfur in the white. This can be lessened or even avoided by not overcooking the eggs. Apparently, this discoloration also shows up the longer the cooked eggs are kept.
It is still safe to eat. It just doesn't look very nice.
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Wiki User
∙ 15y ago
Wiki User
∙ 14y agoNo it is not spoiled. The green color is formed when iron from the yolk reacts with hydrogen sulfide from the white. To prevent the discoloration, after boiling, place the eggs under cold water for a few minutes.
Wiki User
∙ 13y agoWhen an egg yolk is green it is old and moldy! throw it away!
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Meaning of a black egg yolk?
Egg yolk color of free range chickens can vary depending on their diet at the time. The more they eat green, orange, or yellow produce, the deeper orange the egg yolk will be. Egg yolk color can be dark orange but a black yolk means you have a spoiled egg.
What will be the colour of the universal indicator if it is added to a sample of egg yolk?
green.
What causes an egg yolk to be a fluorescent yellow green?
A fluorescent yellow green egg yolk is likely caused by a high amounts of riboflavin (vitamin B2). This can give a yellow green tinge to whites. Otherwise it could be caused by a bacterial infection in the egg and should not be eaten.
What is the middle part of an egg?
the yolk! yolk
Which is correct to say ''The yolk of the egg is yellow'' or ''The yolk of the egg are yellow''?
"The yolk of the egg is yellow" is correct. "Yolk" is a singular noun, so it should be paired with the singular verb "is."
Is the yolk inside the egg or outside?
no, the egg yolk is just the yolk. and the egg white is just the white
Which is fatier the egg yolk or white?
the egg yolk
What is yolk of the egg?
Yolk is the yellow nucleus in the middle of the egg.
Which is thicker egg white or egg yolk?
Egg yolk is thicker than egg white.
If the egg yolk always breaks does this mean the egg is old?
No it does not- if an egg shell breaks, it is because it is not enough protection!
Which is correct to say the yolk of the egg are white The yolk of the egg is white?
No the yolk of an egg is orangish yellow.. the shell is either white or brown depending on which you prefer..
How do you spell yoke?
Yoke is the correct spelling if you are referring to the yoke that is put on farm animals. If you mean in an egg, it is yolk.
