What to use to mark hatching eggs?

[Chickens are awsome]

I plan on hatching eggs and was wondering what to mark them with I have heard that markers can kill the embryo? If that's true what do you recommend to use to mark them?

 

[Brooks_]

I use pencil.

 

[nuthatched]

I'm pretty sure the marker thing is a myth. I could grant that big, dark markings in eggs might cause something but just enough to mark would hardly hurt. pencil is safe but not for use under real hens as it rubs off

 

[BirdsBeesTrees]

I use Crayola markers; they are non-toxic children's markers. Just in case.

 

[The Moonshiner]

I use an ink pen

 

[Anime2lover]

I plan on hatching eggs and was wondering what to mark them with I have heard that markers can kill the embryo? If that's true what do you recommend to use to mark them?

I use pencil or pen

 

[Farmers Chicken Farm]

Is there any particular spot to mark the eggs to not ruin the bloom?

 

[kcult]

I've marked several of my quail eggs with a Sharpie, but it's usually when transitioning to lock down.

That's also when I candle them.

 

[sdm111]

Sharpie

 

[sdm111]

Is there any particular spot to mark the eggs to not ruin the bloom?

I've washed many many many eggs and never had any problems. Washing eggs as I collect them and put them in an egg carton pointy end down marked with a sharp if needed while waiting for a clutch size. After 12 or so take those eggs and stick under a broody hen with 100% hatch rate.
And that's my own experience not what I've read on the net