Soak shark's fin in clear water for about five hours, use a rice cooker to boil water for half a time, put shark's fin with a lemon or an orange in the cooker to make it smell, turn off the heat after boiling for about 20 minutes, turn on the heat preservation system, let the shark's fin soak in the rice cooker for about three hours, and then soak it in clear water for two hours, that is, it will be ready for use. If the shark fin is thin, the water time can be shortened to half an hour accordingly.

Method for soaking shark fin 2:

Soak shark's fin in clear water for about five hours, boil it in a water pot for half a time, put the shark's fin in the pot together to make it smell, boil it for about twenty minutes, then turn off the fire, do not lift the lid, let the shark's fin in the pot until the water freezes, then soak it in clear water for three hours, and repeat the above-mentioned process once or twice until the shark's fin is enough, and then soak it in clear water for three hours, that is, it will be ready for use (even in the last pot) If the shark fin is thin, the water time can be shortened to half an hour accordingly.