PM Update: Scattered showers and thunderstorms through the early evening. Much cooler on Monday. You may have to dodge some raindrops through about 8 tonight. A cold front moves through tomorrow morning and ushers in much more seasonable weather.
Only cook live crabs, because they deteriorate very quickly after they have expired. You can simply throw the crabs in a pot of boiling water to cook them. Depending on the size of the crabs, it will take between 6 and 10 minutes for them to cook thoroughly. If the crab is alive when you start, the amount of cooking time has very little to do with safety  it s more a question of whether the meat is underdone, overdone, or cooked just right.
Re: Cooking mud crabs. I use sea water and put a hand full of rock salt in. I'm not sure how big my crab cooker is though approximately 10l I guess. I cook them for 12 mins after they come back to the boil.ey all, I was after a bit of help with cooking mud crabs. I have the cooking time right just not the water to salt mix. Last time I cooked them they were very salty. How much salt per L and what sort of salt do you use.