Duck eggs are usually cooked for about 10 to 15 minutes. Boiled salted duck eggs also depends on the temperature of the water, boiling water, boiled for 8 minutes. However, it is best not to exceed 8 minutes, and not less than 6 minutes. More than 8 minutes, the duck egg nutrition will have some loss, less than 6 minutes, there may be bad for human parasites.