[header] How to cook jellyfish [title] Rinse the jellyfish and soak it for 1 hour in cold water. [step] Open a 10-ounce (283 g) package of jellyfish packed in salt and rinse it under cold running water. Place the jellyfish in a large bowl and fill it with cold water so the jellyfish is completely submerged. 
Soak the jellyfish for 1 hour. [substeps] The jellyfish should feel flexible once it's soaked long enough.