How long can duck eggs be preserved?

Salted duck eggs need to be preserved for about 20 days before they can be eaten. The preparation method is as follows:

Ingredients: 20 fresh duck eggs, 500g salt and 0/850g water.

Accessories: 30 ml of high-alcohol liquor above 50 degrees.

Steps:

1. Dirty things on the surface of duck eggs should be cleaned and dried.

2. Boil the water in the pot, pour the salt to boil, and then pour it into a large bowl to cool. Pay attention to the salt-tolerant bowl of salt water, which can be enamel (must be defect-free), ceramic or glass, not metal.

3. After the duck eggs are dried, take a rice bowl, pour more than 50 degrees of high-alcohol liquor, and roll the duck eggs in it.

4. Duck eggs are rolled in white wine in turn and dried.

5. After the salt water is completely cooled, carefully put the duck eggs with white wine, pour the salt water, and pour out the remaining white wine from the duck eggs.

6. Because duck eggs will float on the water, hold them down with a plate.

7. Cover it and put it in a cool and dry place.

8. This is the duck egg on the 24th day. There is oil around the yolk and some white spots in the middle, but the protein is just salty at this time. If you want egg butter, continue to marinate.

9. This is the egg on the 30th day. The white spot in the center of the yolk is basically gone. Some eggs are oily, some are scarce, and protein is a little salty.