2. Because of this feature, longevity fish are particularly vulnerable to pollution, especially in some seriously polluted rivers and lakes, and the mercury content in the body is still very high, so if you want to eat longevity fish, you should try to observe it. If the surface of longevity fish is black, it is best not to eat it again.
If you eat too much, you will have indigestion and may be allergic.
Extended data
Shopping tips:
1. Meat should be elastic.
2. The gills are red or dark red.
3. The eyeball is slightly convex and black and white.
4. The appearance is complete, and no scales fall off.
5. What is odorless is fresh.
Cooking skills:
Braised and steamed tilapia is the best.
Cleverly remove fishy smell;
Method 1: After cleaning the fish by removing scales and laparotomy, put some yellow wine into the basin to remove the fishy smell of the fish and make it delicious;
Method 2: fresh fish is cut open and washed, and soaked in milk for a while, which can not only remove the fishy smell, but also increase the umami flavor;
Method 3: Chew three or five pieces of tea when the fish is fragrant in your mouth, and your breath will be fresh immediately.
reference data
Baidu encyclopedia-longevity fish