What is the best way to prepare eggs to sell? We have brown chicken and white duck eggs that we would like to sell. The chicken eggs are mostly clean, have occasional mud when we have rainy weather. They clean well with a little water. The duck eggs are always a bit muddy even though bedded well and collected every morning. Our ducks play in the yard and drill lots of holes in their yard so it is always damp. No matter how I clean the duck eggs they still have a shadowy cast. I have looked at a sandpaper type egg cleaner and Egg Washer Pro cleaning solution from Meyer Hatchery. Suggestions for cleaning eggs to sell from our home? Has anyone used either of those 2 products? Thanks.