1, seawater preservation. Fresh sea urchins can be put into the sea water to save, especially those just caught from the sea water on the sea urchins, if you put it directly into the air, it will deteriorate after four or five hours, in order to prolong its shelf life, you can directly take the right amount of seawater into the container, and then catch the fresh sea urchins directly into the seawater, so that the sea urchins can be saved for three days or so does not deteriorate, but more than three days later it's nutrients will be lost in large quantities.

2, processed and preserved. Fresh sea urchin vitality is particularly weak, and the preservation conditions are more demanding, if it is saved to the natural environment, it will soon deteriorate, so the fresh sea urchin in the catch, if not eaten in time, it is best to process it after preservation, it can be processed into brine sea urchins, sea urchins, frozen sea urchins, you can make it into sea urchins sauce for long-term preservation, so that the urchins can be preserved for a longer period of time, only to be eaten again! The taste is not as fresh as the freshly caught sea urchin.