The shelf life of salted duck eggs depends on storage conditions. If salted duck eggs are preserved at home, they can generally be kept in the refrigerator for 9 months, and if they are kept in the refrigerator in summer, they can be kept for more than 9 months or even a year. If you buy vacuum-packed salted duck eggs in the supermarket, the storage time is generally about three months, depending on the instructions.

If the boiled salted duck eggs are not polluted, they can be stored for about 20 days at 10 degrees Celsius, for about 10 days at 20 degrees Celsius and only for 5 days at 30 degrees Celsius. Salted duck eggs can be preserved for up to 5 days if they are cut. Eat them as soon as possible to avoid spoilage. It should be noted that the preservation time of salted duck eggs may not be prolonged by adding salt.

Therefore, the shelf life of duck eggs depends on whether they are preserved or cooked, whether they are contaminated, and whether they are placed in the refrigerator. The shelf life of salted duck eggs preserved in the refrigerator without pollution can exceed nine months or even one year. If they are contaminated, the shelf life is only five days.