Crab boiled is not as tasty as steamed, steamed steamed more cooked, more tender, is very tasty boiled, boiled with no flavor less tasty. So it is recommended or steamed, although the steaming time will be a little longer, but the flavor will be more fresh.
The practice of steaming crabs
Put some cooking wine in the water, put the crabs (which have been tied up), soak in the water for half an hour. Use a brush (clean toothbrush is the most convenient feeling) to scrub the crabs clean, and then rinse them twice with water. Add water to a pot, bring to a boil, and add the crabs (shell side down). Steam over high heat for 15 minutes.
Prepare the rice vinegar and ginger. Mince the ginger. Put the minced ginger in the vinegar and use it as a dipping sauce when eating the crabs. Turn off the heat and simmer for 3 to 5 minutes, serve, dip in the ginger vinegar mixture, and eat.