1. First cut off the head and fins of fresh hairtail, cut open the belly of hairtail and cut it into sections. If it is frozen hairtail, it should be thawed naturally first.

2. Pick out the viscera in the hairtail belly and throw it away, then put the hairtail section under tap water, wipe off the black film in the hairtail belly by hand while washing, and finally rinse the hairtail section clean.

3. Never wash hairtail with hot water of about 75 degrees, because hairtail will melt when it meets hot water of 75 degrees. Try to be careful not to drop hairtail, and don't intentionally scrape silver scales.

4. The silver scales on the surface of hairtail have high nutritional value, but they also have heavy fishy smell. This layer of silver scales will slowly oxidize when exposed to air for a long time, and the oxidized silver scales will turn yellow and have a "spicy taste". Such scales are no longer edible, so try to wash them off when washing hairtail.