Fill a large pot with about three quarters full with cold water. Add a teaspoon or two of salt and boil.

Add lobster to boiling water so it dives head first.

This step is the most important. Knowing how long to boil lobster depends on its weight. Cook lobsters for 12 minutes at first. From there, add 1 minute of cooking time for every ¼ pound. When done, lobster meat should be opaque.