Does cold water thaw faster or hot water thaws faster?

Answer: If you buy frozen fish from the cold storage at the vegetable market, and you want to thaw the fish immediately after you get home, experienced people will not use hot water to thaw it. For blanching frozen fish, because hot water can only heat the surface of the frozen fish, and the heat cannot be transferred in quickly. If the outside melts, the inside will still be solidly frozen. Not only will this not allow the frozen fish to thaw quickly, but it will also scald the skin of the fish, denaturing the protein and causing the skin to deteriorate. The correct method is to soak the frozen fish in a basin of cold water. Frozen fish melts faster and more evenly in cold water than in hot water. In order to speed up the thawing, you can add some salt to the cold water. The frozen fish will melt faster and the nutrients in the fish will not be lost.