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How to judge whether the vacuum-packed mandarin fish is bad?
1, to judge whether the fish is bad, first look at the color of the fish body. The color is far from the color of the live fish, and it is basically determined to be bad. After most fish die, the color of their bodies gradually turns gray.

2. See if the dead fish is swollen. The fish is bulging, so it can be judged that it has begun to go bad.

3. When you can't see it from the outside, you can press the body of the dead fish with your hand to see if the meat quality is solid. The fish body is soft and floating, and it is basically certain that the dead fish has gone bad.