If for some reason you do end up having to wash them, you can use very warm water,then let them air dry before setting them in your bator. I don't normally wash mine, but I recently got a shipment of eggs where several were crushed and had covered the remaining eggs with nasty egg goo. I had no choice but to clean them, so I used the method above and still had a great hatch.
Hope the sand works out for you - that's a great idea and definitely worth a try.
Good luck with your hatch!
Hope the sand works out for you - that's a great idea and definitely worth a try.
Good luck with your hatch!