Whether it is boiled crabs or steamed crabs, the time is almost the same. Generally, it takes about 15 minutes to cook, depending on the number and size of crabs, but it can't be cooked for too long, otherwise the crab meat will get old and not delicious. At the same time, it is also recommended to steam, which can better preserve the umami flavor of crabs. When it's cold, put the crab in the steamer, and cover it properly to prevent the crab from escaping after heating. Steam for fifteen minutes. Cooking time is similar to steaming, 15 minutes or so. If it takes too long, crab meat will not taste good when it is old.