The preferred method of cooking lobsters.
Steaming is my preferred method of choice as it is gentler, yielding a slightly tender flavorful meat and it is more forgiving on timing. It's harder to overcook a steamed lobster. A 4-5 gallon pot will handle 4-6 lobsters. Put 2" of salted water in the pot, then a steaming rack and bring to a boil. Add lobsters one at a time and cover. Start timing 18-20 minutes depending on the doneness preferred. Timing is for ALL the 1-1/2 lb lobsters in the pot. When cooking five or more, mix up lobsters halfway through and cover.
For boiling lobsters, fill the pot with water, bring to a boil and add lobsters and start timing immediately. Do not cover. Boil lobsters 20 - 23 minutes.
For boiling lobsters, fill the pot with water, bring to a boil and add lobsters and start timing immediately. Do not cover. Boil lobsters 20 - 23 minutes.