should I clean my duck eggs before I put them in the incubator?!?

[AmeraucanaHank]

hi,
I bought some duck hatching eggs this afternoon should I wash them before incubation? Here's a picture of them:

 

[Poultrybonkers]

Nope slap them in as they are

 

[SilverBirds]

They aren't that bad. Go ahead and place them in the incubator. Good luck with the hatch!

 

[AmeraucanaHank]

thanks!