Place 18 large room temperature, older eggs and salt in water. Place on stove with lid on. Turn heat on high. Bring water to a heavy boil then, shut off heat. Leave lid on pot. Allow eggs to sit in hot water with lid on for 15 to 16 minutes for larger eggs. Then, pull pot from stove and rinse eggs immediately in cold water to stop the cooking process. Let cool then peel. Note: If any eggs float - discard them - they're bad.