Use the stewing method so that the nutrients will not be lost. Try not to soak isinglass in water. If you soak it for a long time, part of the gelatin will of course be lost. Cut it with scissors, wash it and then stew it. You don’t need to stew it for too long. Generally, it depends on the type of isinglass and the size you cut it. It usually takes 2-4 hours, and then you can eat it after adding some rock sugar. (Of course, some friends feel that the taste of isinglass is still fishy and they are not very used to it. You can also do it. Add some auxiliary ingredients to remove the fishy smell, such as adding a little red dates, American ginseng slices, etc., which can effectively remove the fishy smell).