Soak in water, and change the water every hour or two. Before soaking, cut the thick jellyfish into thin slices, so it will take about one day to soak.

Supplement:

Jellyfish (Sea Jelly, or Jelly Fish, Nettlefish) h m ㄏㄞˇㄓㄜˊ (Rhopilema esculenta Kishinouye). The bulge of the umbrella is steamed bread-shaped, with a diameter of 50 cm and a maximum of about 1.5 meters. The gum is hard and usually blue-green. The tentacles are milky white. There are eight mouths and wrists, which are split into many flaps. Widely distributed in the north and south seas of our country. It is edible and can be used as medicine.