Yes, you can.
After drying the jellyfish, you can store them in the freezer, but if you keep them for too long, the taste of the jellyfish will be affected, so it is not recommended to freeze them for a long time.
Commercial jellyfish are usually packed with a lot of salt to prevent them from spoiling, so you can wrap them in salt and seal them like pickles at home, keeping them out of the water. Jellyfish can be stored for a longer period of time this way. Or dry it out and refrigerate it. Jellyfish must be soaked in water for a day or two before eating, otherwise they will be very salty.
Identification of good and bad jellyfish head:
Good quality jellyfish head - yellow or brownish-yellow color, glossy; no impurities on the edges, the meat is firm and resilient, no soup heart; crunchy and tender taste.
Inferior quality jellyfish head - was tea brown, no luster; the edge of the impurities, flaccid meat, not toughness; eating without a sense of crispness.