Why won't my boiled egg whites harden?

Why won't my boiled egg whites harden? - Composition of white natural chicken egg placed on light round plate in sun shadows in kitchen

I'm having problems with boiling eggs. The egg whites are not hardening and stay soft, but the yolks did set. The eggs I'm using are freshly laid. What can cause this? How can I make sure my egg whites set too?



Best Answer

This is not a real answer, but rather some info to hopefully, help:

  • Egg whites are 90% water, when they harden, the protein unravels and creates a grid network that does not allow the molecules to slip past each other. If the protein level drops, it might make it harder to set and stay runny.

  • Egg white proteins go through a phase change (become hard) at a lower temperature than the Yolk by a few degrees, that's how you can have soft-boiled eggs.

  • If you crack a fresh egg and it sprawls on the dish (as opposed to hold tall), you're looking at an egg from a chicken that didn't eat many insects/larvae. ;) This may be expected as at this time of the year (northern hemisphere) insects aren't very active.

There is a good section in Michael Pollan's Omnivore's Dilemma that gets into more detail. And perhaps better information regarding the off-season feed.




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Why won't my boiled egg whites harden? - Composition of organic white chicken egg placed on black soft textile in bright light
Why won't my boiled egg whites harden? - Top view of halved soft boiled egg placed on marble table and spiced with salt and pepper
Why won't my boiled egg whites harden? - Bowl of noodle soup with boiled eggs



Quick Answer about "Why won't my boiled egg whites harden?"

Egg whites are 90% water, when they harden, the protein unravels and creates a grid network that does not allow the molecules to slip past each other. If the protein level drops, it might make it harder to set and stay runny.

Why is my hard-boiled egg still runny?

To fix undercooked hardboiled eggs, simply keep them in their shell and simmer under a low heat for up to 10 more minutes. Turn off the heat and cover your pot. Remove from pot and transfer to ice water. Let cool 2 minutes before peeling.

How does boiling egg whites harden?

The heat coming from your stove denatures the protein by disrupting some of its bonds that held the molecule into shape. In the case of hard-boiled eggs, the proteins clump together and solidify, causing the egg white and yolk to harden.



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More answers regarding why won't my boiled egg whites harden?

Answer 2

What intrigues me is what happens in the cooking of an egg already open?

Have you tried doing an egg "poached"? You should be able to see directly the cooking, since it lacks the shell. "In fashion", the egg is cooked by pouring it, without shell, in boiling water, with a flick but delicate. The white should be fully cooked, but the yolk remain raw.

Theoretically, you should see the white cooking, while the yolk not. Please try it and tell us the result.

Answer 3

I never had a cooked yolk and raw whites. Try what I usually do --> put the eggs in water together and wait for 5-10 mins. below is the guideline for boiling eggs. don't wait till the water boils before you put the eggs.

Egg Size Degree of Doneness Time Required Medium Soft-cooked yolk 3 minutes Medium-cooked yolk 5 minutes Hard-cooked yolk 12 minutes

Large Soft-cooked yolk 4 to 5 minutes Medium-cooked yolk 6 minutes Hard-cooked yolk 17 minutes

Extra Large Soft-cooked yolk 5 minutes Medium-cooked yolk 7 to 8 minutes Hard-cooked yolk 19 minutes

Answer 4

http://www.thekitchn.com/5-mistakes-to-avoid-when-making-hard-boiled-eggs-cooking-mistakes-to-avoid-216999

Eggs could be too fresh. I just made this mistake and searched for why my eggs were mushy...

Answer 5

i have been boiling and poaching eggs for many years and this is the first time I have not been able to cook the White of an egg, so I don't think it's the cooking process but to do with the chicken's productive system

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