23/08/2026
*Double-yolked eggs* happen when 2 yolks get released into the same eggshell at the same time.
They’re totally safe to eat — just a bigger egg with extra protein!
*Main causes of double yolked eggs*
*1. Young pullets just starting to lay*
This is the #1 cause.
When hens are 18-24 weeks old, their reproductive system is still figuring itself out. The hormones can trigger 2 yolks to be released together instead of 1.
Most pullets outgrow this after 4-6 weeks of laying.
*2. Breeds that lay big eggs*
Breeds like Rhode Island Red, Plymouth Rock, Sussex, and commercial layers like Lohmann Brown tend to have more doubles. Bigger egg = more room for 2 yolks.
*3. High protein / rich diet*
Too much protein or sudden diet changes can over-stimulate the ovaries. Giving layers mash + lots of treats can sometimes increase doubles.
*4. Extra light / stimulation*
16+ hours of light per day pushes hens to lay more. That can sometimes cause 2 ovulations in one day.
*5. Genetics*
Some hens just do it more. If a hen has laid doubles before, she’s more likely to do it again.
*6. Stress or disruption*
Moving houses, new coop mates, sudden weather changes can sometimes mess with the laying cycle and cause 2 yolks to drop.
*Is it a problem?*
Nope. For eating: totally fine.
For hatching: double yolks almost never hatch successfully. There isn’t enough room and oxygen for 2 chicks.
*Will it keep happening?*
Usually not.
- *Pullets*: stops after a few weeks
- *Older hens*: if it starts suddenly in an older hen, check diet, light, and stress. If it’s frequent, it can sometimes mean hormonal imbalance.
*Bottom line*: If your young hens just started laying, expect a few double yolkers. It’s normal and means they’re maturing.
