How to Clean Crab: Complete Prep Guide (2024)

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Wash and dress your shellfish for proper prep

Co-authored byMarrow Private Chefs

Last Updated: September 1, 2023

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  • Prepping the Crab
  • |
  • Removing Unwanted Parts
  • |
  • Completing the Cleaning Process
  • |
  • Expert Interview
  • |

If you want to eat crab meat, you need to clean your crab first. If your crab is live, you will need to boil it to kill it. You will also need to remove the shell and guts as part of the cleaning process. Once your crab is clean, you can cook and enjoy it.

Things You Should Know

  • Immerse lives crabs in boiling water for 1 minute to kill them, or immerse a frozen, dead crab in cool water for 15-20 minutes to thaw it.
  • Use kitchen shears to remove the face, cutting a straight line across the front of the crab. Then remove the underside of the shell as well as the gill underneath.
  • Hold the opened crab under cool water to rinse out the guts. Then split the crab by holding both sides and pushing the middle with your thumbs.

Part 1

Part 1 of 3:

Readying the Crab for Cleaning

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  1. 1

    Kill the crab first, if necessary. If you purchased a live crab, it is necessary to kill it before cooking it. The simplest way to kill a live crab is to immerse the crab in boiling water for 60 seconds. Then, use tongs to remove the crab from the water and place it in an ice bath to cool.[1]

  2. 2

    Thaw a frozen crab. If you are using frozen crab, thaw it out before cleaning it. Fill a sink with cool water and immerse the crab in the sink. After about 15 to 20 minutes, it should be thawed enough to clean.

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  3. 3

    Allow the crab to cool and dry. If you boiled your crab, let it become cool to the touch before cleaning it. You should also let it dry off first, as handling a wet crab can be difficult. If you thawed your crab in water, let it dry before cleaning it.

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  1. 1

    Cut the face off the crab. Take a pair of scissors from your kitchen and use this to cut the face off the crab. The face includes the crab's eyes and mouth. Cut a straight line across the front of the crab, just behind the eyes and mouth, to remove the face.[2]

    • It is generally easier to use scissors to remove the face. However, not all scissors will be sharp enough. If your scissors fail to cut through the crab, use a sharp knife instead to make the cut.
  2. 2

    Remove the abdomen. The abdomen of the crab is the small flap of shell on the underside of the crab. You do not need any special tools to remove the abdomen. Pull it off with your fingers.

  3. 3

    Remove the gills. You will see the gills underneath the abdomen. They resemble small, beige tongues. To remove the gills, grab them with your fingers and pull them off.[3]

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Part 3

Part 3 of 3:

Completing the Cleaning Process

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  1. 1

    Rinse out the guts. Once unwanted materials are removed from the crab, it can be cleaned using water. Hold the crab under running tap water to rinse out the guts. These are the greenish brown substances found inside the crab. Keep rinsing the crab until the guts are completely removed.

  2. 2

    Break the crab open to get the meat. Now, you can get to the meat of the crab. This can be cooked after it is extracted. Turn the crab upside down. Hold it with both sides and place both thumbs underneath the crab, near the midline of the crab's back. As you push with your thumbs, pull down with your hands. The crab will crack open.

    • You should be left with two even sections of crab meat.
  3. 3

    Cook your crab. Crab sections can be cooked in boiling water. Cook them for 12 minutes. Use a light amount of salt to flavor the crab.

    • If you want, you can serve your crab with melted butter.
  4. 4

    Finished!

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Expert Interview

Thanks for reading our article! If you’d like to learn more about preparing food, check out our in-depth interview with Marrow Private Chefs.

Community Q&A

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  • Question

    How do you cook the legs?

    How to Clean Crab: Complete Prep Guide (17)

    李一岙

    Community Answer

    First, boil the water, put the legs in, then boil for 15 minutes. Take them out and soak them in cold water for 10 minutes. Then, cut the legs into thin pieces. Wrap them with bread bran and flour, heat the oil at a low temperature, fry the crab pieces in the wok until golden yellow. Remove from the heat and finish with a sprinkle of cumin.

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      About This Article

      How to Clean Crab: Complete Prep Guide (29)

      Co-authored by:

      Marrow Private Chefs

      Culinary Experts

      This article was co-authored by Marrow Private Chefs. Marrow Private Chefs are based in Santa Rosa Beach, Florida. It is a chefs’ collective comprised of an ever-growing number of chefs and culinary professionals. Though regionally influenced primarily by coastal, traditional southern, cajun, and creole styles and flavors, the chefs at Marrow have a solid background in all types of cuisine with over 75 years of combined cooking experience. This article has been viewed 109,942 times.

      1 votes - 0%

      Co-authors: 5

      Updated: September 1, 2023

      Views:109,942

      Categories: Crab

      Article SummaryX

      If you want to clean a crab, start by using a pair of scissors to make a cut behind its eyes and mouth to remove the face. Pull off the abdomen, the piece of shell on the crab's underside, before removing the gills, which are the beige tongue-like things you will see inside. To complete the cleaning process, rinse out the crab's guts under cold water until all of the greenish brown substances are gone. Then, extract the meat by holding the crab upside down and pushing down on both sides until the crab breaks in half. For tips on how to kill a crab before you clean it and how to cook a crab, read on!

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      How to Clean Crab: Complete Prep Guide (2024)

      FAQs

      How to Clean Crab: Complete Prep Guide? ›

      Pry apart the two halves of the shell to expose the inside, and remove the gills, lungs, and mouth by simply pulling them all away from the shell. Take the remaining shell, containing the lump crab meat, and crack it in half with your hands in order to make the crab meat more accessible.

      How to clean crab step by step? ›

      Pry apart the two halves of the shell to expose the inside, and remove the gills, lungs, and mouth by simply pulling them all away from the shell. Take the remaining shell, containing the lump crab meat, and crack it in half with your hands in order to make the crab meat more accessible.

      Should I clean crab before cooking? ›

      Rinse Crab Clean

      The remaining parts of the crab (besides the shell) that you don't want to eat are the guts. In the world of cleaning animals, crab guts are pretty innocuous. Rinse them out under cool running water.

      Why do you use vinegar when cooking crabs? ›

      Why do you use vinegar when cooking crabs? Vinegar is commonly added to the water when steaming crabs. It reduces the boiling point of the water so the crabs steam more quickly, and is also said to help the crab come out of the shell more easily.

      How long do you soak crabs for? ›

      Add enough ice to pot to bring temperature down and stop cooking process. Cover and let soak for 30 minutes to 1 hour (the longer the soak, the spicier the crabs will be).

      How do I make sure raw crab is safe to eat? ›

      Properly marinating and storing raw crab can help to kill harmful bacteria and ensure that it is safe to eat. Once you have prepared your raw crab, there are many ways to enjoy it, from serving it with soy sauce and wasabi to adding it to sushi rolls or salads.

      How long can you keep cleaned crab before cooking? ›

      Raw crab meat that you have bought at the store or you have harvested yourself and has been in the fridge can spoil quickly. Crab meat should smell a bit sweet; if it has a strong, fishy, sour odor––it's time to toss it. The shelf-life in a fridge is 3 to 5 days and in the freezer is 6 to 9 months.

      Why are crabs killed before cooking? ›

      Killing the crab prior to cooking is humane and instantaneous, but it also avoids the crab from shedding limbs through shock, which often happens when boiling alive. This shedding of limbs will allow water to flood into the crab and effectively boil out the flavour.

      Do you salt the water before boiling crab? ›

      Boiling crab in salted water is pretty simple. Start by bringing a pot of salted water—about ¼ cup salt per gallon—to a boil. Once the water is boiling, carefully place your crabs in the water and cook for about 10-20 minutes.

      How to clean crab out to preserve shell? ›

      Insects, worms and various microorganisms will clean out your shells, and this method leaves very little odor. Freeze, thaw, and boil the shells. The crab, and any remaining original flesh, will then slide out easily at the end of a toothpick. This works best if the shells are frozen and thawed at least twice.

      How long do you boil fresh cleaned crab? ›

      Bring liquid to a simmer and add crabs headfirst to water. Cook the 1 1/2- to 2 1/2-pound crabs about 15 minutes, and the 3-pound crabs about 20 minutes. Strain cooked crabs into a colander and rinse briefly under cool water. Serve with Drawn Butter, Tarragon Aioli and Aioli with Piment d'Espelette.

      Do I rinse crab legs before cooking? ›

      While frozen crab legs, such as Alaskan King crab legs, don't need cleaning, they should be thawed and rinsed through cold water before use. Only after you have thawed, rinsed, and cooked the crab legs can you clean the shelf to add that juicy meat to your dish.

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