10-15 minutes. Boiling conch must add water, generally two Jin of conch and a bowl of water. Drop two or three drops of vinegar or sesame oil after boiling, so that the snail meat will be easily picked out. Add ginger slices to the pot, boil over high fire, then change to low fire and cook for 10 minutes. When you see the conch's screw head sticking out slightly, you can get out of the pot.

Generally, it takes 12 minutes to cook a big conch, and the time should not be too short, because the big conch has a big shell, which will make the conch meat particularly difficult to cook, and if it is not cooked, it will be particularly unpalatable, so it is generally necessary to cook it for about 12 minutes after boiling, and the time can be long but not short.