Fresh eggs last longer than "supermarket" eggs.
That's because they haven't been washed.
When purchasing fresh farm eggs there's no need to wash your eggs until your ready to use them. If you wash the egg you remove the protective natural coating that keeps bacteria out of the eggs.
You can wipe them off with a dry cloth and this will not remove the coating.
If you continuously keep your nesting boxes clean, you'll have less "dirt" on your eggs or hardly any at all.
