1 How to make soup white for stewed crucian carp soup: fresh crucian carp 1 kg, cooking oil, onion, ginger and shallots. 1 First of all, choose a fresh crucian carp about a catty, and you can't stew the stale fish in white soup. 2. Cut open the crucian carp, clean it, and wash off the black film in the belly of the fish. 3. Add some oil to the pot. When the oil is hot, put the fish down and fry it for a while, and fry it on both sides. 4. Take out the fish and blot the oil on the surface of the fish with oil-absorbing paper. 5. Put clear water in the pot, put the crucian carp in clear water, and add ginger slices and onion segments. 6. After the water is boiled, remove the floating foam on its surface, and then turn to low heat and simmer slowly. 7. Turn off the fire when you know that the fish needs to be cooked and the soup turns milky white. 8. Filter out the fish bones and minced meat, sprinkle with chopped green onion, and add a little salt and pepper to serve. 2 Why is the soup not white when the crucian carp is stewed? This fish is not fried. Before cooking the fish soup, fry both sides of the fish so that the protein in the fish can be dissolved. At this time, the fish will be boiled and the soup will turn white. If you want to cook crucian carp soup too early, you can't put salt too early. Only when the protein in the fish is scattered into the soup will the fish soup turn white. If the salt is put too early, it will hinder the decomposition of protein, resulting in the cooked fish soup is not white. Another reason why fish soup turns white is that if it is stewed for a long time, collagen and oil in fish bones will be hit in boiling water to form milky suspended matter, thus turning fish soup white. If the stew time is short, it is difficult to turn white. The folk prescription of fish soup is not white 1. Add some cooking oil to prolong cooking time. If you don't fry the fish in oil before stewing the soup or stew it for too short, the fish soup won't turn white when stewing the soup. At this time, you can add some cooking oil in moderation and increase the fire to cook the fish soup for a long time, which may turn white. 2, add some starch thickening, if the fish stew time is long enough, there is no way, you can add some starch thickening, but also make the fish soup more rich. 4 crucian carp soup is not white and nutritious? Yes Even if the crucian carp soup is not white, the nutrients in it will not change. Some crucian carp soup will turn white when cooked, because the oil or protein in the crucian carp soup is decomposed into white suspended matter, which is an emulsification reaction. The nutritional components in white crucian carp soup and non-white crucian carp soup are almost the same.