Are eggs still usable after they’ve been frozen?

Storing eggs still in their shells in the freezer is generally neither recommended nor practical, but if eggs happens to freeze because, say, your fridge is turned up too high, the egg is still salvageable, to a degree, assuming the shell didn’t crack. After it thaws, you’ll want to hard-boil it because an unfrozen yolk will become thick and syrupy, and thus, not ideal for other forms of cooking.
 
Food scientist Susan Brewer points out that you can freeze eggs after they’ve been removed from the shell by mixing them thoroughly and then adding salt or sugar to prevent coagulation.
 
Source(s):
University of Maine - Cooperative Extension
Facts About Eggs

Susan Brewer, Ph.D., University of Illinois, Department of Food Science and Human Nutrition