HOw long to cook lobster in boiling water
First consider the size of your pot for boiling the lobsters. An 8-quart pot will easily take one lobster, a 16-quart pot, 2 or 3 lobsters. If you are cooking a lot of lobsters you'll either need to cook them in stages or have more than one pot of water boiling. 1 Fill a large pot 3/4 full of water.rom that point, boil the lobsters for 12-20 minutes or longer, depending on the size of the lobster. 12-15 minutes for 1 lb lobster, 15-20 minutes for a 1 1/2 pound lobster, 20-25 minutes for a 2-3 pound lobster.