1. Put the dried shark fin into a clean container and add warm water to avoid shark fin.
2. When soaking, be sure to change the warm water frequently, at least 3 times, so as to avoid the deterioration of shark fin due to water odor.
Be sure to use two bamboo basketry before shark fin stew. In doing so, one is to avoid shark fin being smashed, and the other is to avoid shark fin deformation and decay.
4. Pay attention to the time when simmering. The author's experience is that the old hard shark fin is usually stewed for 5-6 hours, and the soft shark fin is usually stewed for 4-5 hours. The time for stewing shark fin should not be too long. If it is too long, the surface of shark fin will easily fall into sand due to cracking. Of course, the simmering time should not be too short, otherwise the black outer film and sand particles can not be removed.
5, simmer, simmer pot method should be adopted, can't open the pot. If the fire is big and the water boils, it is possible to boil the surface of shark fin, and the surface of shark fin will rot, and the meat of shark fin will be mixed with sand, so it is not easy to scrape the skin and remove the sand. In addition, shark fins should be separated according to their size and tenderness before making, so that they can be made separately, otherwise the small and tender shark fins will be rotten and the old and strong ones will not be done thoroughly.
6. you can't use iron pots and copper pots to simmer shark fins. Because shark fin contains sulfur protein, it will react with iron and copper to produce iron sulfide, which will lead to black and * * spots on the surface of shark fin and affect the quality of finished products. When making shark's fin, it is recommended to stew it with porcelain pots, stainless steel and other utensils.
7. When the shark fin is simmered, or after the shark fin is cooked, you can't touch oil, alkali, salt and other substances, otherwise it will cause the shark fin skin to melt and affect the quality of dishes.
8. After the shark's fin is simmered, gently pick it with a bamboo stick when removing meat and bone residue, and try to keep the shark's fin tidy so as not to affect the beauty of the dishes.
9. After removing bone residue and sand from shark fin, it should be washed repeatedly and continuously with clear water. One is to wash off bone residue and sand, and the other is to wash off fishy smell.