1 The shelf life of salted duck eggs depends on the environment. If salted duck eggs are preserved by themselves, they can be preserved for about nine months at room temperature. Salted duck eggs preserved in summer are usually stored at room temperature for about three months. If they are stored in the refrigerator, they can be kept in cold storage for about twelve months.

2. The preservation method of salted duck eggs is also relatively simple. Generally speaking, it is hot in summer, so duck eggs can be stored in a cold storage room. Be careful not to freeze them. Frozen salted duck eggs taste very bad and can be placed in a cold storage layer.

3. When it is cold in winter, duck eggs can be placed in a dry and ventilated place, so as not to be exposed to the sun, which can prolong the preservation time.

4. Salted duck eggs contain a lot of protein, and protein is decomposed into amino acids after being salted. In addition, after the duck eggs are salted, the salt content will increase, and the inorganic salts in the eggs will also increase.

5. The yolk of fresh duck eggs contains a lot of fat. This substance is combined with protein, and no oil can be seen. After curing for a period of time, it will denature and separate from fat, which is the egg butter in salted duck eggs.

6. Salted duck eggs are rich in calcium. After salted duck eggs, the protein content in them will be obviously reduced, but the calcium content will not be reduced.