How to Cook Live Lobster at Home

Every lobster we have ever ruined was ruined the same way. It stayed in the pot too long.

We have shipped live lobster out of LobsterAnywhere since 1999, somewhere past 900,000 boxes, and the question that still comes in more than any other is some version of how long. Shorter than you have read elsewhere. Nearly every time published online runs long, and lobster does not forgive it. A minute past done and sweet, firm meat turns into something you work at with your molars.

How to Cook Lobster

The Cooking Chart

A 1½ pound lobster takes 8 to 9 minutes to boil or 9 to 11 minutes to steam, timed from the moment the water returns to a full boil. Pull it at 135 to 140°F in the tail.

Time each lobster by its own weight, not the combined weight of the pot. Four 1½ pounders are four nine-minute lobsters, not one thirty-six-minute lobster. This one mistake ruins more lobster than everything else combined.

Start the clock when the water comes back to a full boil, not when the lobsters go in. On a crowded pot, that is three or four minutes of difference, which on a 1¼ pounder is a 40% error. If the boil stops dead for more than about thirty seconds after the lobsters go in, the pot is overloaded. Pull some out and run a second batch, or switch to steam.

Quick Reference

Start the clock when the water returns to a full boil. Time each lobster by its own weight, not the combined weight of the batch.

Lobster Weight Boil Steam
1 lb 6–7 minutes 7–8 minutes
1¼ lb 7–8 minutes 8–9 minutes
1½ lb 8–9 minutes 9–11 minutes
2 lb 10–12 minutes 11–12 minutes
3 lb 12–14 minutes 12–14 minutes
5 lb 18–20 minutes 22–24 minutes
Pull Temperature
135–140°F in the thickest part of the tail. FDA guidance for seafood is 145°F.
Salt
Use ¼ cup kosher or sea salt per gallon of water.
Water
For boiling, use about 1 gallon per lobster. For steaming, use about 2 inches of water beneath a rack.
Crowding
If the water stops boiling for more than 30 seconds after adding the lobsters, cook them in a second batch.
Food-safety reference: FDA seafood temperature and doneness guidance .

Pull at 135-140°F in the thickest part of the tail, probing from the side nearest the body. That is where most kitchens pull it. FDA guidance for seafood is 145°F, and a lobster pulled at 135°F coasts up to 140-145°F on the counter anyway.

Salt the water, but less than you think. A quarter cup of kosher or sea salt per gallon. You are not seasoning the meat; you are keeping the lobster from leaching out the saltiness it already has. Plain water pulls that out, and the lobster lands on the plate tasting flatter than it did in the tank. Going heavier does not make it taste more like the ocean; it just makes it taste like salt.

Shell matters more than the calendar. A hard shell needs a minute or two more than the chart says. A soft shell overcooks fast, so cut a minute and watch it closely. Much of the Maine catch from July into late September is soft shell, but lobsters are graded before they ship, which is how we send hard and firm shell all year. If your box came from us, run the full time. If you bought off a dock in August, squeeze the body’s side first. A soft shell gives. A hard shell does not.

In the trade, these run chickens, quarters, halves, selects, and jumbos. In Maine, they are just bugs. The grade does not change the rules. Weight and temperature do.

Hard shell vs soft shell · When to buy, month by month · What size lobster to buy

Not everyone starts the clock in the same place. In Lobster at Home, chef Jasper White, winner of the James Beard Award, times from the moment the lobster hits the water, not from the return to boil. On the one- to one-and-a-half-pounders most people cook, subtract his pot’s recovery time and his numbers, and ours land within a minute of each other. He runs longer on the big ones, and he means to. White cooks giants slower and gentler. We take them shorter and let the thermometer settle it, pulling at 135 to 140°F, whatever the clock says. So before you decide a chart is wrong, check which clock it is running, then trust the temperature over both.

Full times by weight, including 3- to 10-pounders

Handling a Live Lobster

If the live part is the part you are dreading, you are in decent company. In Julie & Julia, Julie Powell drops three thermidor-bound lobsters into the pot, one of them shoves the lid off, and she screams and runs out of her own kitchen. Funny scene, real fear. It is also considerably worse in the movie than it is in your kitchen. More lobster moments on screen

Pick the mad one first. The lobster that raises its claws at you and flaps its tail is the freshest one in the box. A limp lobster is a lobster that has been sitting.

Keep the bands on. The only pinch should be the meat you steal off the plate on the way to the table. Grip the top of the shell right behind the head, thumb on one side and middle finger on the other. From there, the claws cannot reach you. It will flap its tail; it is loud, it startles you, and then it is over.

You will find people who cut the bands off first. Some lobstermen swear the rubber taints the water. We have heard that our entire career and still say leave them on. Nothing burns or melts in nine minutes; the bands slip off after, and wrestling with a freshly unbanded lobster over boiling water is a bad trade for a difference we have never been able to taste.

My first one got me before it ever reached the pot. A quarter, meaning 1¼ pounds, bands already off, and I picked it up by the claw arm like a handle. The cutter got me. That is the smaller of the two claws, and it is named for exactly what it does. I can still tell you precisely how much that hurt.

The crusher is the big one. It is slow and used to break shells. The cutter is fast and the one that finds you. More on lobster anatomy and what the parts are called

Boiling? Hold the underside away from you on the way down. They flip that tail and throw hot water. Learn that now rather than the usual way.

Storing live lobster · Humane preparation

How to Prepare Maine Lobster

Steam or boil

SteamBoil
FlavorCleaner, more concentratedClassic. Shell flavors the water, water flavors the meat
WaterloggingAlmost noneReal risk, especially sitting after cooking
MessTwo inches of water, no boiloverA full pot, and it will try to boil over
Batch sizeOne to threeFour or more. Recovers faster between loads
ForgivenessMore. Gentler heat, faster return to boilLess. A hard rolling boil overcooks quickly
ShellingFine when timed rightEasier. Intense heat pulls the meat back off the shell
PotTall, tight lid, two inches of waterStockpot, a gallon per lobster, fully submerged
Best forWhole lobster dinnersLobster rolls, picking meat, a crowd

Short version: steam for dinner, boil for rolls. We boil when we are doing more than four.

Cooking for a specific dish? Boil when you are picking meat: rolls, salad, pasta, bisque. The harder heat releases the meat more cleanly, and you can run a big batch. Steam when the lobster goes to the table whole. For thermidor and stuffed lobster, par-cook either way and finish it in the oven with the sauce.

Chart pairing lobster dishes with cooking methods: rolls and bisque boiled, whole lobster steamed, tails grilled

One pot note you will not find on a cookware site. A lighter gauge pot boils faster than a heavy-duty one, so you do not need an expensive pot; you need a big one. If yours is too small, do not crowd it. Use two pots with the same water in each, and they finish together.

A steamer rack is optional. All it does is keep the bottom lobsters off the metal so they do not scorch, and an upside-down colander does the same job. What is not optional is leaving room for the steam to move. Pack a pot tight, and the bottom ones scorch while the top ones sit there raw.

Pot sizes by count · Steam guide · Boil guide

Cooking Lobster Instructions
Every lobster order includes a step-by-step cooking guide.

There are several ways to prepare lobster at home. Use this quick reference to pick the best method and jump into our step-by-step guides.

Beyond Boiling and Steaming
Grill

Char and smoke. Split or piggyback, flesh side down first.

Grill Lobster Guide Bake

Even, hands-off heat. The move for stuffed lobster.

Bake Lobster Guide Broil

Fast top heat and browning. Do not walk away.

Broil Lobster Guide Microwave

One lobster, no pot. Works better than it sounds.

Microwave Lobster Guide Air Fryer

Tails and split lobster, small batches.

Air Fryer Lobster Guide Sous Vide

Total control. Mostly for tails and picked meat.

Sous Vide Lobster Guide
Prep Cuts

Exposes the meat for even cooking and easy basting. Do this before you bake, broil, or grill.

How to Butterfly Piggyback Tails

Knowing when it is done

The shell turns red no matter what. Red means heat was applied. It does not mean cooked, and that trips up more people than anything except pot-weight timing.

Thermometer in the tail, 135-140°F. That is the one that ends arguments. The rest are supporting cues:

  • Meat opaque and pearly all the way through, no glassy patches
  • Tail curled tight, meat firm rather than soft
  • Roe bright red and firm. Roe sets at a slightly higher temperature than the meat, so if it has turned red, the meat is definitely there. This is the most reliable visual cue on the list, and almost nobody knows it.

The roe cue only runs one direction. Black, slimy eggs do not mean undercooked. Usually they are immature eggs that have not moved down the tail yet, and no amount of extra time will turn those red. Scrape them out, rinse the cavity, and go by the thermometer. Cooking longer to chase red roe is a good way to ruin a lobster that was already done.

You will read that a lobster is done when the antennae pull out easily. Sometimes true, often not. We would not bet a $100 dinner on it.

Undercooked is a two-minute problem. Overcooked is the whole ballgame. When in doubt, pull it. To stop the cooking cold, straight into a bowl of ice. If you boiled, punch a small hole between the eyes with the tip of a knife and stand the lobster head down to drain, or that water ends up on your table.

Doneness, temperature, and visual cues

Big Lobsters are Not Tough

This one has been floating around for fifty years, and it is wrong. Anything over two pounds is supposed to cook up tough and stringy. It does not. Five- and six-pounders come out every bit as sweet as a chick lobster, with the bonus that the claw meat comes out in one piece you can slice.

What is true is that they are easier to ruin, because the published times for big lobsters run even longer than the times for small ones.

I ruined my first 3-pounder on October 17, 2004.

Sox were down 3-0 to the Yankees and facing elimination. I had a jumbo in the pot when the bottom of the ninth started, Rivera on the mound, 4-3. Then Roberts steals second, Mueller singles him in, and the thing will not end. Tenth. Eleventh. At 1:22 in the morning, bottom of the twelfth, Papi puts one in the Yankee bullpen, and Fenway comes apart.

Five hours and two minutes of baseball. Roughly forty minutes of lobster.

The pot boiled over onto the burner and that jumbo came out like shoe leather. Greatest night in Boston sports history and I ate a shoe.

That lobster was not tough because it was three pounds. It was tough because I left it in for forty minutes. Big lobsters are not tough. Distracted cooks make them tough. Use a thermometer, and if the Sox are on, set a timer.

Jasper White gets at the same thing from a different angle. He says jumbos come out tough because they are cooked too fast, and his fix is heat rather than time: drop them into boiling water, then bring the heat down so they poach instead of roll. Lower and slower is more forgiving, the same way it is with a roast. Worth trying on anything over two and a half pounds.

If It Came Out Wrong

  • Tough and rubbery. Overcooked. That is the only cause.
  • Some done, some raw. Crowded pot or mixed sizes in one batch.
  • Mushy and cottony. The lobster was weak or dead going in. Sourcing problem, not a cooking problem.

What to Do with It

Cooking clams or mussels alongside? Netted bag right on top of the lobsters, steam them together; they finish within a minute of each other.

Lobster salad · thermidor · pasta · lobster rolls · surf and turf

Melt the butter while you wait. It is the only thing you have to do in those nine minutes. Whisk a little lemon juice into it if you want to get fancy, or see if the butter sauces are worth the extra two minutes.

Lobster runs about 76 calories and 20 grams of protein per three ounces, which is leaner than most people assume for something that eats like a splurge. Complete nutrition facts

Working with larger sizes (3–10 lb)? Use our Large Lobster Times & Temps guide.

Illustrated Maine guide to cooking lobster with boiling and steaming times by weight, salt ratio, and doneness cues.
Timing based on shipping lobster since 1999, checked against Jasper White’s Lobster at Home. View the complete lobster cooking guide .
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My Family is Passionate About Our Seafood
I live in Texas, and I am a personal chef here. I have been a chef for 20 years now. I grew up in Long Island NY, and my grandfather was a lobster fisherman in the Long Island Sound in Cold Spring Harbor. I never in my whole career thought that I could have lobsters better than the one’s we had with my grandfather, but the lobsters you sent were as fantastic as my childhood memories.

Thank you So Much!
T. Steinhart
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FAQ on How to Cook Lobster

You can, and we would not. Pressure leaves almost no margin between done and rubber, and lobster is unforgiving before you add pressure. Want speed? Steam. Barely slower, far more controllable.

Sure. We stick to salt because we like tasting the lobster, but plenty of good cooks do a seasoned boil. Go light if you are picking meat for rolls, since the seasoning follows the meat into the sandwich.

Depends on how long it was kept and how it was stored. Lobster spoils fast after death. No off smell is a good sign, and after cooking the tail should curl tight and the meat should be firm. If either is missing, throw it out.

In the shell, about 24 hours in the fridge. Reheat in the shell, a minute in the microwave or two to three minutes of gentle steam. Past that, pick the meat and refrigerate it covered for two to three days, no longer. If you know going in that you will reheat, pull them two or three minutes early and chill them fast.

Congealed hemolymph. Lobster blood runs clear before cooking and sets into a white gel after. It is harmless and tasteless, and it does not mean anything went wrong. What color is lobster blood

Water boils cooler at elevation, about 1°F lower per 500 feet, so moist heat cooks slower. Add roughly two minutes, keep the lid tight, and trust the thermometer over the clock. High -altitude guide

Keep them in the shipping container and refrigerate. If it will not fit, use a paper bag on a tray to catch drips. Never seal in plastic; never in tap water, which kills them in minutes. Storing live lobster

For any clawed lobster, yes, including the European one. Spiny and rock lobsters have no claws and a different body, so they run differently. Weight and pull temperature still apply. Rock lobster vs Maine lobster

The dark line down the tail is the digestive tract. The sac behind the eyes holds the stomach. Everything else is fair game, shell included, which is what gives lobster bisque its body.

Everybody is, the first time. Grip the shell behind the head, put the bands on, keep the underside away from you, head first, cover it, and walk away for nine minutes. If you would rather not, chill it in the freezer for 15 minutes to sedate it, or split it with a knife first. Humane preparation

Green is tomalley, the hepatopancreas, doing the job of a liver and pancreas at once. Maine health officials advise against eating it because that organ works as a filter and can concentrate toxins that the tail and claw meat do not. Scoop it out. What is inside a lobster

Looking for More Ways to Cook Lobster at Home?

Ready to cook lobster? Discover our easy-to-follow recipe for How to Cook Lobster Tails. Plus, we have helpful guides showcasing different ways to cook live lobsters, giving you plenty of options for preparing them at home. For a quick look at the top methods for cooking Maine lobster, check out our overview.

Comments

  1. there are many studies that say that they suffer if boiled alive or with ice, and there are more and more to confirm this, in fact in Italy it is illegal to put them in ice and in the United Kingdom, Switzerland, Norway etc. illegal to boil them alive but you seem neutral whether to make them suffer or not, with all due respect you haven’t changed much since the Puritans, Europe is moving forward

    Reply to antonio

    1. Do you have a specific study regarding Maine lobster? Whether lobster feel pain is still up to debate. They certainly do not feel pain as humans do since they have a decentralized, insect-like nervous system. We offer ways to hamanely dispatch lobster before cooking. Lobster is indeed seafood. It has been fished and consumed for over a hundred years in the US. You certainly have a choice of what you eat. In contrast, the European lobster market has experienced significant growth and demand for live lobster. Imports into the European Union were up by a solid 23.5 percent.

      Reply to Lobster Louie

    1. This is simply not true. This law has nothing to do with boiling lobster. Here is the lacy act. Illegal trafficking of wildlife, fish, and plants has nothing to do with cooking lobster. Imagine all the lobster shacks and seafood restaurants on the East Coast and in the US would be closed. It is quite a nonsensical article.

      Reply to Lobster Louie

  3. I simply cannot accept the concept of boiling a live creature to death. If crabs can be humanely killed before cooking, then why can’t you do the same with lobsters?? I read your instructions for humanely cooking lobsters but most of your instructions and the comments here still talk about boiling or grilling live lobsters. Cruel and shameful.

    Reply to Pamela Payne

    1. In our instructions for grilling whole lobsters, we suggest numbing the lobster in the freezer before prep. Then cutting the underside of the lobster along the center line from the head to the tail. Also what instructions are you suggesting for ‘humanely’ cooking crabs? There’s no real consensus on the best method of killing and cooking lobsters. And since lobsters do not have a central nervous system, there is still a debate of whether they feel pain. If they do or do not we always try to minimize any pain.

      Reply to Lobster Louie

  4. Cooking many lobsters in batches….How about par boiling 4-5 minutes, pull them out, ice them. And then as you need them , drop them in boiling water for 2 minutes, pull them out, drain them, pop them on a plate? would this work? It may screw up the timing, and 4 minutes may not kill the lobster…..but this is how poached eggs are done for a crowd.

    Reply to Bob Boomer

  6. I’m from Nova Scotia and have eaten lobster all my life but never hot or warm. My family’s way of eating them has always been out of the fridge the day after they were cooked. We eat them with potato salad and white wine. Whenever I go to a restaurant and have them served hot, the experience is lessened for me.

    Reply to Len Babin

  8. We live in Nova Scotia and when the boat in our neighbourhood came in today they sent three 2 lb lobsters to our house (not the first time either). We’ll blanche them with the steamer and the finish them broiled with lots of garlic, jalapeno butter. Raw oysters for an appetizer

    Reply to TERRY KITTMER

  11. Hi I was reading thru the instructs, and I see in the beginning of the web site it states, salt 1T per gallon, and then in the boiling instructs it says 2T per quart? I hear it does not matter as the lobster comes from a salty home but is it a type-o? also the steaming instructs says to get the water boiling and place the lobster into the pot but for how long because the next sentence says to steam for 7 minute per pound…..and continues on. thanks ahead for clarifications…:0)

    Reply to Dallas Covington

  15. You should get rid of the microwaving instructions. NEVER EVER EVER microwave lobster! EVER! Microwaving many meats turns them into a rubbery consistency, completely ruining the tenderness. Chicken is one of them but it does even worse things to ALL shellfish. DON’T. Just DON’T, ever microwave lobster.

    Reply to Christopher

          2. I’ve also had good luck microwaving lobster. I stick the tail with a wooden skewer to stop the curl. Place in a glass 9×13 casserole with 1/4 cup water and nuke 6 min. Check with IR thermometer for temp. Usually see the white foam from joints when done properly.

    2. How can I keep my lobster warm if I have to boil in batches because I don’t have enough pots to cook all at the same time? Your website has very good information for someone who is a lobster newbie. 🙂

      Reply to Val

  16. Just moved to Nova Scotia Canada after living in the west for 30 years, we love lobster but never had the opportunity to cook it often, we are now in Lobster Heaven! Your instructions are very clear and concise, thanks!

    Reply to Jo-Anne

    2. Thank you Wen, your instructions were very assuring. I have been cooking lobster for years. Well for my anniversary my husband came home w a 10lb lobster. needless to say I jumped on your site. I love the thermometer test !!! It works GREAT!!!! The lobster was not chewy at all. Another reason why I love maine lobsters so much. Please stay safe an healthy
      KathyW.

      Reply to Kathy

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