Because if the jellyfish head is scalded with boiling water, it will shrink and lose its crisp taste. If you want to blanch the jellyfish head, you can boil the water in the pot to about 60 degrees, then turn off the fire, put the jellyfish head in and scald it a little, then take it out and immerse it in cold water or ice water immediately.

Extended data:

Jellyfish heads need to be washed and soaked before cooking, because fresh jellyfish heads contain toxins harmful to human body, which must be completely removed after a series of treatments.

Buy fresh jellyfish head home, first soak it in water for two days, then soak it in vinegar for five minutes to kill all the bacteria in the jellyfish head. If it is a dry jellyfish, soak it in salt water. It is very skillful to blanch jellyfish, otherwise it will affect the taste of jellyfish.