First in a relatively dark environment with a torch, there are black spots in it, that is, fertilized duck eggs, no black spots, sent to the old workshop, pickled into salted duck eggs or Songhua eggs.

The fertilized duck eggs are transferred to the next process, where the hay is covered and the stove is burned, and then wooden boxes are prepared, and the duck eggs are placed in the wooden boxes one by one, and then the boxes are tightly covered with broken quilts.

The temperature in the box is controlled at about 38 degrees, there is no thermometer here, and the eggs can only be turned every few hours based on experience and feeling to ensure that the duck eggs are heated evenly.

After 21 days, you should start to cool the eggs, first spray the shell with warm water to make the shell crispy, and the temperature is the same as your eyelids......

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