If we are purchasing dead crab main problem is over .Because killing crab is an adventures job for me.Different people use different methods for killing crabs.Better purchase live crabs because it will add taste to your curry ,also the dead crab starts to deteriorate immediately.
Method 1
Put the live crabs in a bucket full of ice cold water and ice .May with in 30 mts they will be dead.
Method 2
Keep it in boiled water for 10 to 15 mts .
Method 3
Keep the crabs in freezer for sometime and kill them by first removing their 2 big biting legs.
Next question will be how to clean the crabs
1.Before killing the crabs you better clean them under running water.You can use brush for scrubbing the crab.Use heavy gloves for holding the live crab.
2.If you are cleaning a dead crab remove its walking legs first .There are always a yellow color substance inside the crabs which is not good for eating.
3.If you boil the crabs first it will be easier to remove it.Then secondly remove the flap in backside of the crab.
4. In western countries they do not remove the shells.But to make the eating easier hit the shell to a hard surface to crack the shell.
5.And by pulling the shell with your hand it will come out easier.Now you will get the meat from it.And clean the crab under running water.
Enjoy cooking of crabs .......