Salmon is expensive, such as Norwegian salmon, and the market price is between 80~ 100 yuan/1 kg.
Domestic rainbow trout, the market price is about 30 yuan/1 kg.
Their prices are very different, so many merchants will fake rainbow trout to get higher profits.
2. Variety differences
In fact, these two kinds of fish are completely two species, and there is no connection. Salmon refers to Atlantic salmon, which is a kind of marine fish. Rainbow trout is a kind of freshwater fish, but the texture of fish is very similar to salmon, so it is called freshwater salmon by some people.
3. Differences in meat quality
Salmon fish is bright in color, orange-red, with clear fat texture and wide fat between textures. The taste is firm and full, rich in fish oil, with the feeling of melting in the mouth and full of elasticity. When the fish chews, it constantly squeezes the taste of teeth and mouth. In the light, the surface of salmon is shiny and faintly reflective.
Rainbow trout tastes more chewy and has some earthy smell, and the fish is not as delicious as authentic salmon. Rainbow trout has a dull surface in the light and will not reflect light.