1, preserved eggs need not be peeled and cooked. Eggs are raw before being salted, and they become preserved eggs after being salted with materials. Preserved eggs ripen after more than a month. They can be eaten directly after washing and shelling, and can also be used to make cold dishes or preserved egg lean porridge.

2, preserved eggs are cold dishes, that is, cold preserved eggs. Preserved eggs can also be used to cook preserved eggs and lean porridge. Preserved eggs take longer to cook porridge. Generally, preserved eggs are cut into small squares, which is convenient for cooking and has high nutritional value. Eating them can nourish the stomach and stimulate appetite.

3. Salted duck eggs need to be cooked. Although salted duck eggs have been preserved for a long time, they are all raw and need to be cooked before eating. Boil salted duck eggs, and put cold water into the pot, just enough to drown salted duck eggs. Firepower should be turned into a big fire first, and then into a small fire after the water boils. Boil for about 10 minutes, then take it out and quickly cool it with tap water. Cooked salted duck eggs should not be eaten in a hurry. They can be put on a plate and cooled naturally before eating.