Dear Pat: Those “dents” in the eggs were formed because of the presence of an air cell at the large end of the egg. When the egg is first laid, it is warm. As it cools, the contents contract and the inner membrane shrinks away from the shell, creating a small air pocket, or cell, in the large end of the egg.
Are hard-boiled eggs supposed to sink?
If the egg stay at the bottom – it is fresh. … If the egg stands on its pointed end at the bottom – it is still safe to eat but best used for baking and making hard-cooked eggs. If the egg float – they’re stale and best discarded.
What do overcooked boiled eggs look like?
Perfect hard-boiled eggs have tender whites and opaque yellow yolks, but cooked too long and the middle turns green. The most tragic blunder is when an olive green ring appears around the yolk and a strong sulfurous odor forms. … The dreaded rotten egg smell, yuck!
How can you tell if a hard-boiled egg is bad?
A spoiled hard-boiled egg may have a distinctive, unpleasant odor. If the egg still has the shell on, you may need to crack it to assess the smell. Many people become alarmed if the yolk of a hard-boiled egg is greenish-gray in color.
Is it safe to eat an overcooked hard-boiled egg?
Can you eat overcooked boiled eggs? Yes, it is safe to eat overcooked boiled eggs, even if you have considerably overcooked them. Regardless of any green tint around the yolk, as long as the egg was fresh when it was cooked, it should be fine to eat once you have finished cooking it.
Why are my eggs floating when boiling?
Why Do Cracked Eggs Float? If the egg’s shell is cracked, egg white will leak out into the boiling water. This reduces the mass of the egg, making it easier for the less-dense egg to float. Some bits of boiled egg white will float around in the saucepan of boiling water, which is unattractive but harmless.
Why are my hard boiled eggs floating?
An egg can float in water when its air cell has enlarged sufficiently to keep it buoyant. This means the egg is older, but it may be perfectly safe to use. … A spoiled egg will have an unpleasant odor when you break open the shell, either when raw or cooked.
Is 20 minutes too long to boil eggs?
If you boil an egg for five or 10 minutes, it becomes firm and cooked. If you boil it for hours, it becomes rubbery and overcooked. … Keep boiling the egg and the proteins continue to form cross-links, making the egg even more firm and rubbery.
How long should I boil an egg?
Bring the water to a boil over high heat. Then, let them sit in the hot water. As soon as the water begins to boil, turn off the heat and cover the pot. Leave the eggs in the hot water for anywhere from 10-12 minutes, depending on how you like your eggs.
Are hard boiled eggs bad if the yolk is dark?
A greenish-gray ring may appear around a hard-cooked egg yolk. It’s unattractive, but not harmful. The ring is caused by a chemical reaction involving sulfur (from the egg white) and iron (from the egg yolk), which naturally react to form ferrous sulfide at the surface of the yolk.
Can hard boiled eggs sit out overnight?
“Hard-boiled eggs should be refrigerated within two hours of cooking and discarded if left out for more than two hours at room temperature,” said Rubin.
How long do you boil 4 eggs for hard boiled eggs?
Cover the pan with a lid and bring water to a rolling boil over high heat; when the water has reached a boil, reduce heat to medium-high and set the timer for the desired time. Boil for 6 – 7 minutes over medium-high heat for perfect hard boiled eggs.
How long hard boiled eggs last?
Once they are cooked, they’ll last for about one week regardless of the storage method. The best way to store hard-boiled eggs is to keep them in a covered container, such as Glad Entrée Food Containers in the refrigerator.
What is a black egg yolk?
If an egg yolk is black, it usually means there is old blood in there. The more they eat green, orange, or yellow produce, the deeper 5. … that the darker the yolk, the tastier the egg. 6. a black yolk means you have a spoiled egg.
Why do cooked eggs turn GREY?
It turns out that hard boiled eggs can take on that greenish gray color around the outside of the yolk because of a chemical reaction between the iron in the yolk and sulfur, which is present in the white. … That said, besides being a bit on the rubbery side, an over-boiled hard boiled egg is still fine to eat.
Is it easy over or over easy?
An egg cooked “over easy” means that it gets fried on both sides, but it’s not cooked for very long on the second side, so the yolk doesn’t get cooked through and stays runny. … “Over” refers to flipping the egg, and “easy” refers to the doneness of the yolk.