This piece explains when and how to wash fresh eggs in order to avoid contamination. They have different rules than USDA-graded eggs.
Eggs: To Wash or Not to Wash? • The Prairie Homestead
Should you wash eggs or not?
The Correct Way to Clean & Store Fresh Eggs
How to Wash Fresh Eggs and When It's Best to Leave Them Unwashed
Hinkle Homestead - Unwashed or washed? Does it even matter?? And the answer is, it's generally best to leave the egg unwashed, until you're ready to eat. Just before laying an egg
How to Feed Eggshells to Chickens • The Prairie Homestead
Eggs - is washing and refrigerating necessary? - The Livestock Project
Storing and Preserving Chicken Eggs
The Best Way to Wash and Store Fresh Eggs - Audrey's Little Farm
How to Safely Handle Farm Fresh Eggs on the Homestead