Salmon is best eaten fresh. Generally speaking, the salmon was the best that day. The longer it takes, the worse it tastes. If the fish is stored for more than a week, even if it doesn't go bad, the taste will go bad. At the same time, fish will turn sour, and eating too much is not good for your health. The method of judgment is simple. First, fresh fish is pink, elastic and shiny! I have been to CCTV building to eat salmon. The salmon there are all imported from Norway and are very fresh. Small ingredients are beautifully made. I suggest you try them!