1, with different shapes: domestic hairtail is small and narrow, with a body width of about 4-7 cm and a body length of about 40-60 cm. Imported hairtail is relatively large, with a body width of about 6- 10 cm and a body length of about 1 m at the longest.

2, the characteristics are different: domestic hairtail is relatively symmetrical, from beginning to end, gradually tapering, while some imported hairtail and back are wide, and the tail is obviously tapering.

3, scales are different: domestic hairtail is slightly white, scales are easy to fall off, there is no protruding bone on the back, and imported hairtail bones are hard.

Extended data:

Precautions for eating hairtail:

Hairtail can't be fried with butter or sheep oil, and peanuts and hairtail are also taboo, so peanuts and hairtail can't be eaten together in life, otherwise it will cause diarrhea.

Hairtail can't be eaten with licorice and Schizonepeta, otherwise it will be more vulnerable to the wind.

The scales on hairtail have degenerated into a silver scale film, and some people are always used to scraping this silver scale film off hairtail, which is labor-consuming and loses a lot of nutrition. Therefore, when eating hairtail, it is necessary to avoid scraping off the silver film (degraded scales) on its body surface.

Baidu encyclopedia-hairtail

People's Daily Online-Taiyuan imported frozen hairtail products were found to be positive in the outer packaging.