1. appearance. The color of cod is white, with obvious red lines, and the scales are arranged very closely. However, the fake cod scales are needle-shaped with spots, and the fish is yellow and white; After heating, the taste is rougher, which has nothing to do with freshness and tenderness, and it is a bit like the taste of duck.

2, feel. After thawing the cod, you can feel very smooth by touching it with your hand, as if there is a mucous membrane, but it is not particularly thick; On the contrary, the fake cod skin is rough and can be well felt when buying.

3. The fake cod in the market is generally called dragon cod. In fact, it has nothing to do with cod, and this kind of fish contains a lot of wax, which is not easy to digest if eaten in the stomach, so it is easy to have diarrhea after eating this dragon cod.

4. In addition, there are differences in prices. The price of real cod is at least 8 yuan per catty. If you spend dozens of dollars to buy it, you can conclude that it is not real cod.