If it is packaged salted duck eggs bought in supermarkets, the shelf life of such salted duck eggs is very long after vacuum packaging, and they can be stored for a long time. However, if the packaged salted duck eggs have expired, it is not recommended to eat them again.

Similarly, the shelf life of homemade salted duck eggs will be shorter than that of uniformly produced and processed salted duck eggs. If it expires for half a year, the nutrition in it is likely to be eroded by bacteria, so it is best to give up eating such salted duck eggs.

2 What will happen if salted duck eggs are eaten after expiration? If you only eat a small amount of expired salted duck eggs, you will generally not feel uncomfortable. Don't worry too much. If you feel thirsty and throat discomfort, you can metabolize harmful substances as soon as possible by drinking more water, taking more rest and accelerating urination. It is best to urge you to spit them out in a short time after eating. If you have symptoms such as abdominal pain, diarrhea, fever and headache, you should be sent to the hospital immediately for emergency treatment.

3 What does the appearance of salted duck eggs change after expiration? The shell of normal salted duck eggs is mostly cyan, with smooth and clean surface and no cracks, while the shell of expired salted duck eggs is gray, with white or black spots on the surface.

Salted duck eggs that have not expired have an earthy taste, but have no peculiar smell, while expired salted duck eggs have obvious unpleasant smell, and the odor is more obvious with the longer the expiration time.

4 How to keep salted duck eggs for a long time If the room temperature is high, it is recommended to store salted duck eggs in the refrigerator, so that salted duck eggs can be kept for a long time in an environment with low temperature. If the room temperature is not high, salted duck eggs can be stored in a ventilated and dry place, paying attention to avoiding direct light.

In addition, boiled salted duck eggs can be stored in the refrigerator after being wrapped with plastic wrap. In order to reduce the risk of eating deterioration, it is best to eat cooked salted duck eggs as soon as possible after being placed in the refrigerator.