1. Wash and tie the hairy crabs and wipe off the surface moisture with kitchen paper
2. Put hairy crabs on a long and slightly wider foil, and sprinkle a small handful of sea salt on the back
3. Wrap it, do not seal on both sides, and do not expose the crab's body. Preheat the oven at 220 degrees for 5 minutes, put in the hairy crabs wrapped in tin foil, and bake for 40-50 minutes
4. When the crabs are cooked, remove the tin foil and bake for another 5 minutes to dry the residual moisture on the surface and bring it out of the oven
5. Brush off the salt particles on the surface before eating (the salt-grilled crab does not need any dipping sauce)
