Remove impurities from the prepared nematodes, wash them with sea water, and drain off excess water. Do not omit this cleaning step, otherwise the colored sludge will contaminate the worm during the process of salting and preservation, and change the color of the worm’s body surface.

The next step is to stir the drained worms with large grains of salt. After stirring, put the worms on a multilayer newspaper, then roll up the newspaper and put it in a dark, well-drained place for draining. This will drain the moisture in the worm body that has been precipitated by salt. Note that the sticky and slippery body fluids in the worms body should flow out of the paper roll in time, and cannot be nested in the bait bag, otherwise it will cause the rot of the worms.

After 2 hours for salting out, the water in the worm’s body is basically removed. At this time, the worm should be re-rolled on a thick and dried rag with good water absorption. After the outer layer has been tightly wrapped, a heavy object should be pressed on the worm in a flat ground for about one to two hours, so that the residual moisture on the surface of the Clam worm will be absorbed by the dry rag again. After open the wrapped rag, you will see that the silkworm bait is in pine shape. After changing another dried rag, you should seal the nereis deversicolor with plastic bags and hidden in the freezer of the refrigerator