Check the expiration or sell-by date on the carton
Place the egg in a bowl of water
Discard eggs that float
Keep eggs that sink and lie flat
Discard eggs with a strong bad odor when cracked open
Discard eggs with unusual discoloration or mold
Discard eggs with a slimy or powdery shell
Discard eggs with a runny or abnormal-looking white or yolk
Discard eggs that have been stored improperly or left out too long