General soaking, the first size of the shark fins, old and young separated, respectively, soaking, and avoid using iron utensils, so as to avoid the occurrence of yellow spots on the fins. When soaking, first put the shark fins into a pot of water to cook for 1 hour, fish out and put it in a basin or bucket, add boiling water to soak for a few hours, when the water temperature is reduced to not hot, take off the sandy surface of the fins, cut off the fins and wash the roots.

Then separate the soft and hard fins, respectively, in two bamboo baskets, with the lid pressed tightly (because of this auspicious can avoid the boiling of the fins will be broken), put into the pot and then boil over a fire, switch to the fire to cook, soft fins need to cook about 5 hours, hard about 7 hours. After boiling, pour it into a basin (or bucket) to cool it down, then you can take out the bones and remove the rotten meat. Then the shark's fins will be floated in clear water for 1 day, change the water 2 times to promote its foaming and remove the fishy flavor, and then simmer in hot water for 4 hours, so that the shark's fins back to soften the contraction, to be removed from the internal fishy flavor, and then put into the water for a few hours can be used to soak.

When soaking shark's fins, you must pay attention to the following points: 1, when soaking shark's fins, you must be diligent in changing the water 2, when soaking shark's fins, you can't use iron or copper pots, or it will produce a chemical reaction. Appear black and yellow spots, it is best to use stainless steel utensils 3, alkali, salt, oil will melt the surface skin of the shark fin, so do not let the shark fin and these three substances in contact with 4, hairy fins should be rinsed with water constantly, so that you can remove the sand particles, fishy flavor, but also make the fins bloated again 5, must use a small fire when cooking simmering, the fire is easy to destroy the surface of the fins, so that the sand is mixed in

There are desanded shark fins on the market for sale, is The shark's fin is a kind of processed shark's fin that has been cleared of sand. This kind of shark's fin soaking procedure is simple, thick and long quality of the old wings can be boiled and stewed for about 4 hours, short and thin quality of the tender can be boiled and stewed for about 2 hours, and then placed in the water can be immersed for about 2 hours.