1. If the whole scallop is used for cooking, generally speaking, a scallop with a medium size (about 5-7 cm in diameter) needs to be cooked for about 5-8 minutes.
2. If scallop meat is taken out and cooked, the cooking time will be shorter. Usually, each pound (about 454g) of scallop meat needs to be boiled for 3-5 minutes.
No matter which method is used, the most important thing is to ensure that scallops are completely cooked and the meat is fresh and tender. When the appearance of scallop turns milky white and the meat becomes elastic, you can gently probe it with a fork to check whether it is completely cooked.
Please note that the above time is for reference only, and the actual cooking time may be different due to the size, thickness and personal taste of scallops. Before cooking, you can also consult the cookbook or the advice of a professional chef.