Nails are put in clams, and shellfish and seafood have the habit of spitting mud when they smell iron. Although it takes a long time, it can maintain the integrity of the appearance of clams. This method is recommended if citizens are not in a hurry to eat shellfish and seafood. In addition, you can also directly put the clams into the iron pot to spit sand, and the same effect can be achieved.
Extended data:
Method for accelerating sand spitting of aquatic seafood
① Refueling method: Put the cleaned clams into a transparent bowl, pour a few drops of oil and soak them in clear water. Two hours later, only a few clams spit sand. Take out the clams, the water is very clear, and the effect of spitting sand is not ideal.
(2) salting method: put the washed clams into a transparent bowl, add salt and soak them in clear water. Two hours later, I saw that the water in the clam was a little turbid. After the clams are picked up, a small amount of sand is deposited at the bottom of the bowl.
(3) Vinegar method: Put the cleaned Meretrix meretrix into a transparent bowl, pour in vinegar and soak it in clear water. Two hours later, the water in the bowl became turbid and the clams were fished out. There is sediment at the bottom of the bowl, but it is obviously less than the bowl soaked in salt.