1. Wash the duck eggs for later use.

2. Put soda ash and salt into a small porcelain jar, and pour them into boiling water. After they are fully dissolved, add quicklime and firewood ash in batches. When the quicklime is completely melted, the feed ash will be prepared, or you can directly buy preserved egg powder.

3. spread the ash (you can add some rice husk or wheat bran) or preserved egg powder evenly on the fresh eggs.

4. It will be sealed for about 25 days in spring and autumn, 15 days in summer and 3 days in winter.

preserved eggs, also known as preserved eggs, preserved eggs, colored eggs, etc., are named after the patterns on the eggshells, and have a mellow fragrance, which is a traditional flavor egg product in China. The prepared preserved egg is easy to peel off the eggshell, the protein is solidified, and it is light green brown or brown translucent jelly. There are pine needle-like white crystals or patterns in the brown protein, and the yolk is semi-solidified. The yolk can be obviously divided into dark green, khaki, gray green, orange yellow and other different colors, and there is soup in the yolk.