It's not possible for large production facilities to monitor the health and wellness of each and every hen, so they have to wash & sanitize the eggs. Buying eggs from a local producer often ensures that the natural bloom is still intact when the eggs go home with you.
Since I've always been one to trust God's ingenuity & I know the health of our hens, we only lightly rinse soiled Happy Hen eggs with warm water before packaging them. Oftentimes, the eggs are perfect straight out of the hen and require little to no rinsing which guards the integrity of the natural bloom. To support safe handling practices, you should rinse your farm fresh eggs just before use.