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Home » All » By Ingredient » Seafood » Oysters » How to open oysters

How to open oysters

By Layla Pujol 3 Comments

Parts of an oyster

My husband Nicolas is helping with today’s step by step instructions (with photos) on how to open oysters. Oysters are delicious seafood, full of nutrients like iodine, which is best eaten fresh and raw. I love eating raw oysters, but this wasn’t always the case. In fact, I have to thank Nico for teaching me how to appreciate raw oysters. Before I met him, I liked oysters either fried (Texas style) or in ceviche (Ecuadorian style), but was skeptical about eating them raw directly from the shell. The large Texas Gulf oysters are great for frying or grilling, but not the best for raw consumption. My favorites for eating raw are the smaller oysters, such as Kumamoto, Olympia, Penn Cove, Kusshi, Hama Hama, and more.

Cold weather months are usually the best months to eat raw oysters. My aunt once told me that you want to avoid eating oysters in any month that doesn’t have an “r” in its name – basically May-August. The warmer the weather the more likely that the oysters can have harmful bacteria – and most of the time that you hear about people getting sick from raw oysters is during the summer months. This is an obvious statement, but there is always a health risk associated with eating any raw seafood – so as the little warnings on the restaurant menus state – if you are unsure ask your doctor.

Oysters can be intimidating to open. They have a very hard shell, no easy point of entry, and stories of people getting hurt. It’s said that in France, on Christmas Eve most calls into the French 911 (the 18) come from people trying to shuck oysters and injuring themselves before a good dinner with family and friends. So always be careful when shucking oysters, keep your hands protected and be patient with the tougher oysters.

Opening live oysters
Understanding the anatomy of an oyster can help with the opening process. Oysters have an upper and lower shell. The main part of the oyster is in the lower shell and we call the top shell the “lid”. Lids are usually bare of any edible part of oyster meat or have just a little. The hinge of the oysters is the thick narrow part. The lips are the thin (and wider) edges that are opposite to the hinge.

The upper and lower shells are kept together inside by a main muscle called the “adductor” muscle. This muscle is the one part of the actual oyster meat to cut when opening an oyster, the rest of the oyster meat should be kept intact. The most common way to open an oyster is by targeting the hinge. An alternative method is to target the right side where the adductor muscle is located – this method works best for oysters that are flatter and have a more regular shape.


How to open oysters

Overview of how to open or shuck a live oyster
4.83 from 76 votes
Print Pin Your Questions and Comments
Course: Appetizer, Brunch
Cuisine: American, European, French, International, Latin American, Pacific Northwest
Keyword: Christmas, How to, New Year's Eve, Oysters, Shucking oysters

Ingredients

  • Fresh oysters

To serve:

  • Mignonette or French shallot vinaigrette

Instructions

Main method – opening on the hinge

  • Take a thick kitchen towel, double it if needed. This is very important for hand protection.
  • Hold the oyster with the towel using your left hand, hinge facing you.
  • Using an oyster knife, gradually apply pressure and oscillate around the hinge.
  • Once the knife comes in, reach straight for the adductor and make one clean cut.
  • Open the oyster, rinse lightly to remove any broken shell pieces.
  • Test the oyster is alive by poking lightly around the lips. They should retract. Double check with a smell, the oyster should smell fresh and like the ocean, but not fishy or bad. Do not eat if the oyster smells bad or does not retract when poked.

Alternative method – opening on the side

  • If the oyster’s shape is flat with an entry point on the right side, where the adductor muscle is located, then this method can provide a cleaner cut as the knife comes in closer to the adductor muscle. Only attempt this method once you are fairly comfortable with the main method. Follow the same instructions as in the first method, but instead of inserting the oyster knife into the hinge; attempt to open it from the middle of the right side.
  • Place the oysters on crushed ice and serve immediately with mignonette sauce or lemon slices.

Notes

Not all oysters knifes are the same. Some are longer, others shorter. It’s a matter of preference. Personally I use a short knife as it provides a better handle and also has a shorter blade in the event of a slip

Step by step photos for opening oysters

1- Fresh kumamoto and kusshi oysters 2 - Wash the oysters before opening

3- Use a thick towel to hold the oyster 4- Use an oyster knife to open the oyster at the hinge

Step by step instructions with photos on how to open or shuck oysters Step by step instructions with photos on how to open or shuck oysters

Raw oysters Raw oysters with shallot mignonette sauce

Oysters on the half shell

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Similar Recipes

Filed Under: All, Appetizers, Basics, Christmas, Europe, France, Holidays, Latin America, Meatless, New Year's Eve, Oysters, Pacific Northwest, Seafood, South America, Valentine's Day

Reader Interactions

Comments

  1. Ric Lovell says

    December 1, 2019 at 12:45 am

    An excellent “how to do it” description. While I have oysters often, it has always been at restaraunts, and they do the work (for about $4 an oyster), Gong to my local shop, I got fresh Malpeque at $1 / each. Did them using these directions and they were great. Thank you!

    Reply
  2. Gary Dering says

    May 23, 2017 at 6:21 pm

    Having opened a few oysters on a few occasions, I’d have to agree that having and using an oyster knife is key.

    Reply
  3. graham says

    April 2, 2015 at 6:29 pm

    Really helped me I had know idea how to do it had cut my hand in the past ,now I find it real easy

    Reply

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Welcome

 Layla Pujol is an Ecuadorian modern-day nomad who loves to cook and travel. She currently lives in Europe, previously in the US, and is currently working on her first cookbook, which will focus on delicious Ecuadorian and Latin recipes (adapted to her style). More

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