The density of fish meat frozen for a long time, that is, the texture will become rough and the taste will change, but different fish can be divided. Frozen river fish 10 tastes the same for half a day, and there is basically no difference between unchanged and unchanged, but the freshness of marine fish is different, and the freshness is greatly reduced, but the marine fish generally bought are frozen. . . Oh, feel for yourself. I have no experience in this field either. I basically make it as soon as I buy it, or keep it at MINUS 5 degrees.

But then again, you can eat it for three or four months, don't worry. However, you can also tell how to identify the freshness of the fish master. There are some answers about this on the Internet. Look at three points: 1, see if the fish's eyes are shiny, 2, see if the fish's gills are rosy, and 3, see if the fish is elastic.