Not all swim bladders can be made into gelatin. Only stone fish such as yellow-lipped fish and yellow croaker, what else? ? Fish, croaker, etc. , as well as the new cod and eel swim bladder, can be used to make flower glue. Because only the swim bladder of these fish is thick and rich in collagen, which has nourishing effect. The swim bladder of other marine fish is thin, so it is not worth making gelatin. Gelatin is worthless even if it is made, especially for the swim bladder of freshwater fish. Not only the swim bladder is thin, but also a large number of antibiotic residues will be enriched in the swim bladder during the culture process. Gelatin made from this kind of swim bladder is not only nutritious, but also harmful to health.

0 1, take the swim bladder. First, we need to take out the whole swim bladder from the fresh belly. Here, be careful not to break the swim bladder.

02, then we clean the swim bladder, remove the black film, bloodshot, blood film and impurities in the swim bladder, and then clean it. What is worth noting here is not to tear the swim bladder, otherwise the glue made from such swim bladder will be worthless.

03. Setting and drying. This step is more important, because if the shape is not beautiful, or the air is not perfect, it will also affect its value.

So the third step of plastic drying is what we often call the drying process. Drying processes are divided into natural drying and machine drying, high-temperature drying and temperature-controlled drying according to temperature, and traditional and modern processes according to technology. The traditional practice is to dry the fish bladder on a bamboo grate or a bamboo raft, which will test the experience, otherwise it will easily crack or mold. Another kind is dry in the shade for a long time, which is better than direct exposure. Modern production is through the dryer, according to the temperature and time required for each stage of drying treatment. More scientific and better nutrition retention.