A group of boiled red crawfish on a platter.

How To Boil Crawfish

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Cooking and eating crawfish is a Cajun’s delight, so with that said, it’s my pleasure to share our family’s methodology on how to boil crawfish with you. I include some helpful tips and a short video on peeling those tasty tails. There’s also a story of my favorite childhood memory of crawfishing in the rice fields behind our house. So, allons’! (That means let’s go!)

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Crawfish season begins in November, continuing through June in the fresh waters of southern Louisiana. There are many ways we Cajuns like to devour that fruit of the bayou country, but I agree with my mama who says a Crawfish Etouffée and boiled crawfish are the best ways to eat them. So true, but catching and boiling is the most entertaining way. Here’s a good example.

Crawfishing In The rice Fields

It was a summer day when suddenly the back door of our little green house flew open, and daddy hollered out to mama, “Grab the kids and some buckets; the rice fields are full of crawfish.” They called our cousins who lived down the gravel road to join us, and the hunt was on!

It was a sight to see! The rice grew tall in those days. I can still remember walking through the rows of rice stalks with their full heads bending above my head. Daddy was right. Those red mudbugs were crawling through the mud between the rows of rice everywhere we looked. Our buckets couldn’t hold them all, so we chose the large ones and left the rest. It was a Jubilee, and it was so much fun!

After we picked to our heart’s content, we loaded ourselves with our full buckets into the back of daddy’s truck and headed down the levee to our little green house. Mama and Daddy cooked the fresh harvest in a large boiling pot, and we ate until our lips were burning from cayenne pepper and our bellies were full. It was a joyful time!

Everyone shared their own story of crawfishing that day. Mama asked if we had seen any snakes. Thank God I didn’t! With all the excitement, I didn’t even think of that. She said she saw one eating crawfish and told that snake, “you go ahead and have all you want,” then turned to go the opposite way.

The Tradition Continues

This is a memory I wish I could experience again. But oh, how things have changed! Because of the increase in demand for crawfish, farmers have developed ponds suitable for growing and fishing in those same rice fields. Plus, we are also seeing more sugar cane replacing many rice fields.

But the benefit is that people are becoming more aware of our Cajun culture through the vehicle of food. This blessing helps preserve the good things of our heritage, like gathering family together for a crawfish boil in the backyard.

I’m happy to say that my children enjoy the crawfish boil tradition today as much as I do, but Mama can still out-peel them all. With the help of some family members and their own experiences, my two sons have gotten their own crawfish cooking skills down pat.

Here’s how to boil crawfish step-by-step as easy as ABC. I hope you find them helpful and have an opportunity to boil your own crawfish at home.

These steps will show you how to:

  1. keep the crawfish fresh and alive
  2. clean them with a purge
  3. cook them in a proper cooker (a simple large pot will do)
  4. season them up
  5. add vegetables and sausages and such
  6. boil and soak them in the right amount of time3
  7. get an easier peel
Dog sniffing green grass.
Cord and Crawfish Stand-Off

Cord lost the stare-down; crawfish never blink.

The easy ABCs to remember:

Always buy the freshest.

It’s important to get live crawfish as local and fresh as possible. I now live in southeast Arkansas, close enough to the Louisiana border to pick up a sack or two ourselves or have them trucked the same day they’re harvested. However, we see a few crawfish ponds popping up in the Arkansas Delta area. That’s exciting!

I feel your pain for those of you who are too far away to quickly get a fresh delivery! Some companies do ship live crawfish to just about anywhere. It comes with a higher price, but it may be a worthwhile splurge!

After getting your crawfish, they need to be kept in their netted sack in refrigeration or on ice. We usually buy 2 thirty-pound sacks at a time, transporting them in a large ice chest (about 60 quarts) with the bottom lined with bricks and the lid closed. The bricks keep the crawfish elevated enough so they don’t drown in the melted ice water. It takes about 6 regular-sized ice bags for this large ice chest with the 2 full sacks. Also, make sure la écrevisse are wet before placing them in the chest, spray them with fresh water, and close the chest drain.

As soon as I get home, the ice chest is placed outside in a shaded area. Then, with the drain valve opened, we elevated the chest with a brick under it on the opposite side of the valve. This keeps the melted ice flowing out and away from the live crawfish. We add more ice to keep them cold as the ice melts.

Preserving them this way is important because you don’t want to boil dead crawfish. That would not be good! And you don’t want to waste any either. So I have successfully kept them stored on ice for up to 2 days with little to no waste.

By the way, you can estimate 3 to 5 pounds per serving. Except, we Cajuns count on 5 pounds per person . . . at least. Yes, we do! Plus, the peeled leftovers are good in most recipes like Chunky Cheesy Creamy Crawfish Dip or Crawfish Nachos. Remember, you may need to adjust the seasoning a little.

Before you cook, purge

It’s time to clean the crustaceans.

Take them out of refrigeration or ice chest and allow them to warm up to room temperature while still in the sack. You will see them begin to move. This takes about an hour and a half, depending on how warm it is outside. Then, empty one bag of crawfish into a large ice chest, give them a good rinse of freshwater, remove any dead crawfish, grass, or debris, and drain.

Some prefer to purge with pure water, and others believe salt is needed to get the best results. I prefer the salt method to be on the safe side. Although I have eaten those purged with fresh water only, they were very clean tasting, but they were clean and fresh-looking to begin with.

Clear Water Method

All you do for this method is repeatedly rinse the crawfish, add water to the ice chest, then stir them around and drain until the water flows clear.

Salt Water Method

To purge using salt, fill the chest with water a few inches above the crawfish. Sprinkle half of a 26-ounce box of regular salt over the water, then stir the crawfish with a large paddle to mix well. Let them sit for about 5 to 10 minutes. This cleans them inside and out, causing them to excrete anything in the digestive tract. It also cleans the outside of the shell. Keep flushing and rinsing with fresh water until the water looks clean.

NOTE: Protect animals, grass, shrubs, trees, and flowers by draining the saltwater far away from them.

Cook the vegetables first, then the crawfish in the seasoned, boiling water.

Whether you are using a crawfish cooker or a big boiling pot on the stove or outside burner, the cooking process of “how to boil crawfish” is the same.

A crawfish cooker.

We recently purchased this gas cooker that boils up to one sack at a time. It’s so nifty! There’s a fill line to mark the water, so all we have to do is fill it up with fresh water and turn it on. It also makes draining and dumping an easy task.

Of course, you don’t need a big cooker like this one. All you need is a large pot half-filled with water and seasonings to set on your stove or on an outside burner. As far as how much water to use, a good rule of thumb is 2 gallons of water for every 10 pounds of crawfish.

What Kind Of Seasoning To Boil Crawfish

Bag of seasoning.

Nowadays, we use Louisiana Fish Fry Products Crawfish, Shrimp, and Crab Boil Seasoning. It’s delicious and super easy! Their 4.5-pound bag is the perfect size for a thirty-pound sack of crawfish. When cooking a second 30-pound sack of crawfish in the same water, we add another half bag or more.

You Can Use Your Own Seasoning Blend Way before pre-packaged crawfish boil seasonings became popular, we used our own simple seasonings of salt and pepper. The ingredients for 30 pounds of crawfish are 2.5 – 3 twenty-six-ounce boxes of salt and an 8-ounce bottle of cayenne pepper plus one stick of butter. After boiling the crawfish for 15 minutes, give them a 3-minute soak. Then add 1 more box of salt and a few more ounces of pepper plus 1 more stick of butter, give them a good stir and serve. That’s how I remember eating them as a child—it’s the classic taste of Cajun cooking. By using this method, you get more of the taste of the crawfish and less of the seasoning blend. YUM!

Time To Cook

When the water and seasoning have come to a full rolling boil, it’s time to cook. Boil the vegetables first to ensure the potatoes and the rest of the vegetables are cooked long enough. Our family’s favorite add-ins are potatoes, corn on the cob, mushrooms, onions, lemon halves, and small link sausages. The lemons are for added flavor, not eating.

Note: Cut onions in half and wrap them in foil to keep them from falling apart.

Boiled vegetables and crawfish.

This cooker makes it easy to drain and dump the boiled food into an ice chest before eating. Bring the water back to a full boil then it’s time to add the crawfish and a stick of butter. The butter helps them peel easier.

Dropping live crawfish into a cooker.

Let them cook for 5 minutes for small to medium-sized ones, or 8 minutes if they are large. Then turn off the heat and dump a bag of ice into the boiled crawfish. Or, give them a spray of fresh, cool water from the water hose. Add enough to replace the amount of water that evaporated during the boil. Allow the crawfish to soak in the seasoned water until they sink to the bottom. The idea here is to cool them slightly and push water into the shell for a juicier bite. It seems to work because we get luscious easy-to-peel tails every time!

Spraying water over a boiled crawfish.

Now it’s time to drain and dump them into an ice chest, close the lid, and let them sit for about 15 minutes. This will cause them to soak up even more seasoning before serving.

We like serving ourselves straight from the ice chest which keeps them hot. Some prefer dumping them out on a table lined with newspaper or plastic.

They can also be eaten with saltine crackers and a dip made with one part mayonnaise and one part ketchup. The dip is for the crackers and the crawfish tails. This is how my children like it.

Here’s a short video tutorial showing one method of how to peel a crawfish tail after you twist it from the head:

This is only one way you can approach the peel. I know it can be a struggle if you’re new to eating boiled crawfish, but don’t give up. Let your hunger push you to learn your own peeling technique. As a child, the way I learned is by taking the tail-end off first, then pinching the back of the tail in half to crack it making it easy to pull the rest of the shell away. Many times the unwanted black line will come out when the tail is removed.

I’ve seen it done in different ways. Some even take a bite right into the shell while holding the tail-end with their fingers and they manage to pull the meat out between their teeth. It’s not for me, but whatever works for ya’!

You can also suck the heads or use your finger to retrieve the insides for the fat and more of the spicy juice flavor. Not for me, either!


Can you leave crawfish in water over night?
No, they will drown; keep them refrigerated or on ice to keep them alive for up to 2 days.
Do you have to purge the crawfish?
It’s best to purge the crawfish which cleans out their digestive tract for best tasting results.
How long do you boil crawfish?
Cook for 5 minutes for smaller and 8 minutes for larger ones in boiling water then soak them in the seasoned water.
How long should crawfish soak?
Wait until crawfish sink to the bottom of the pot then drain from the water and store in an ice chest until ready to serve.

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A group of boiled red crawfish on a platter.

How To Boil Crawfish

Simple ingredients and instructions on how to boil crawfish with delicious results every time.

  • Total Time: 50 minutes
  • Yield: 610 servings 1x



6 gallons of water

14.5 pound bag of Louisiana Fish Fry Products Crawfish Shrimp, and Crab Boil Seasoning, or your favorite blend

1 stick of butter,  1/4 pound

30 pounds live crawfish, rinsed and purged

Optional Ingredients:

lemons, cut in half


corn on the cob


garlic bulbs




1. Fill a 60-quart pot halfway with fresh water or a crawfish cooker with fresh water to the fill line.

2. Add the seasoning to the water and turn on the heat bringing the water to a full boil.

3. Add lemons and vegetables and cook until vegetables are done, then drain them from the pot and set them aside in an ice chest to keep warm.

5. Add crawfish with butter and cook for 5 minutes for smaller and 8 minutes for larger ones.

6. Turn off the heat, then spray the crawfish with fresh water from the water hose, enough to replace the water that evaporated while cooking, or add a bag of ice, then wait until the crawfish sink to the bottom of the pot or cooker.

7. Drain and place the boiled crawfish in an ice chest, close and let sit for 15 minutes before serving, if you can wait.


Letting them sit in the ice chest before serving helps them absorb more of the seasoning. 

You can add any of your favorite vegetables to the boil.

Adding the ice or the fresh water helps cool the boiled crawfish slightly and push water into the shell for a juicier bite.

Serve with saltine crackers and a dip made of 1 part mayonnaise and 1 part ketchup.

  • Author: Louisiana Woman
  • Prep Time: 30 minutes
  • Cook Time: 20 minutes
  • Category: Main Dish
  • Method: Boiling
  • Cuisine: Cajun

Keywords: how to boil crawfish, boiled crawfish

I hope you’ve enjoyed this post as much as I’ve enjoyed bringing it to you. Please share on Instagram, Facebook, Pinterest, or wherever you are on social media. Let me know about your crawfish adventures by commenting below. I love hearing from you!

Bowl with dip and crackers in a pan of crawfish.

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“A little faith will bring your soul to heaven; a great faith will bring heaven to your soul.” 
― Charles Spurgeon

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  1. Hi if you’re looking for live crawfish to cook for your own boil you can call 1-800 crawfish or visit their website I get all my crawfish from them they’re always all a lie and very high quality. www livelouisianacrawfish.com

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