Fill a large pot with 3-4 inches of water. Add the salt and bring the water to a boil.
Grasping the lobsters by the body, add the lobsters to the pot headfirst and cover the pot.
Boil or steam the lobsters for 10-20 minutes depending on the weight of the lobsters. 1 1/2 pound lobsters will take approximately 8-10 minutes. Check for doneness with an instant read thermometer and an internal temperature of 140˚F.
Using tongs, remove the lobsters from the pot and place on a platter to drain and cool.