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Double Yolked Eggs – Are Two Yolks Better Than One?

Last updated on October 25, 2007

My mom called last night to tell me she’d peeled a hard boiled egg and it had two yolks. (That’s her egg in the picture below.)

I’ve never seen a double yolk egg myself and I was curious how common it is so I decided to do a little research on the topic.

I found an explanation of the double yolk phenomenon:

double yoke egg

Double Yolkers appear when ovulation occurs too rapidly, or when one yolk somehow gets “lost” and is joined by the next yolk. Double yolkers may be by a pullet whose productive cycle is not yet well synchronized. They’re occasionally laid by a heavy-breed hen, often as an inherited trait.

On that site you’ll also find descriptions of other egg oddities. Who knew you could have no yolkers, double shelled eggs, eggs without shells, spoon shaped eggs, eggs with tails, wormy eggs, triple yolkers, and even a nine yolker? Yikes!

About 1 in 1000 eggs has a double yolk so it isn’t all that rare. In some countries, markets sell cartons of double yolked eggs.

Throughout history and in different cultures, finding a double yolk has been considered to mean anything from an impending wedding to a financial windfall to a death in the family.

So would a double yolked egg produce twins? Probably not:

… the presence of the two yolks would generally lead to an unsuccessful hatch. The nutritional value of the egg white, which is an important food supply for the embryo is insufficient for the two embyros.

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22 Comments on "Double Yolked Eggs – Are Two Yolks Better Than One?"

2 years 7 months ago

To Chris. Its nothing to do with chemicals and tampering lol. I’m in country Australia. I’ve had free range chooks all my life. I’m now 28. We have always had a few double yolker eggs. It’s just a natural twist in nature. I now have 4 brand new chooks. Only laying for a few weeks and one of those is now laying double yolkers as well. There free range, and eat organic food scraps & grain. Happy healthy chooks :)

2 years 7 months ago

I just come across this post whilst googling the reason for double yolks. As I have a chicken laying at least 1 a week. It’s accrues in young hens that are just starting to lay & there cycle is not yet synchronized. Or, in hybrid hens, it can be very common through out there whole laying cycle. There is nothing wrong with the egg at all. Completely safe to eat. I’ve eaten loads :)

3 years 5 months ago

Double-yolkers are rare, but they do happen. Sometimes five in a row! See here

mrs h
5 years 7 months ago

i always look out for double yoked eggs we all think they are scrummy yummy and a lot better value for money than any other you can buy.

5 years 9 months ago

Haha!! I love double yolkers! It’s great!