How To Clean Conch Shells: 10 Steps (with Pictures) - WikiHow

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How to Clean and Polish a Conch Shell Download Article Preserve your conch for years to come with a little bleach and polish Reviewed by Amy Guerrero

Last Updated: June 26, 2025

Download Article

• Soaking in Bleach
|
• Removing Barnacles
|
• Avoiding Mistakes
|
• Q&A
|
• Things You'll Need

|Show more |Show less X

This article was reviewed by Amy Guerrero. Amy Guerrero is an Arts and Crafts Specialist and the Owner of Sunshine Craft Co., a crafting studio based in Phoenix, Arizona. Amy specializes in macrame, DIY crafting, and teaching fiber arts. She offers monthly in-person and online workshops along with having developed a range of DIY craft kits for at-home projects. Amy holds a BS in Industrial Design from Philadelphia University. She worked as a graphic designer before starting her own business. Sunshine Craft Co. is a creative hub that offers a wide range of workshops, tools, and resources for any craft project to inspire creativity and community engagement. This article has been viewed 117,466 times.

If you picked up some shells at the ocean, it's important to clean them when you get home. A properly cleaned conch shell can be a great souvenir for years to come. To start, soak your shell in bleach for a day. Then, pick off any barnacles and polish the shell with mineral oil.

Things You Should Know

• Put on gloves and goggles, then submerge your shells in a diluted bleach solution. Soak them in the solution for 24 hours.[1]
• Wedge a screwdriver or pick under any barnacles to pry them off. Then, use a scrub brush to remove stubborn dirt.
• Let the shells air dry, then rub them with cotton balls soaked in mineral oil. Allow the shell to dry for 12 hours, then add another coat.

Steps

Part 1 Part 1 of 3:

Soaking Your Shells in Bleach

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1. 1 Put on protective gear. When working with bleach, it's vital to wear protective gear for your safety. Put on thick gloves and goggles before mixing your solution. Also, be sure to mix bleach in a well ventilated area such as outdoors or in a garage.[2]
2. 2 Prepare your bleach solution. To soak a conch, mix a solution using half bleach and half water. The precise amounts you need of each depends on how many conches you're soaking. You need enough bleach and water to fully submerge your conches. Advertisement
3. 3 Soak your shells for 24 hours. Once you've mixed the bleach and water, add your conches to the solution. In about 24 hours, you can remove them from the solution. Some of the dirt will have come off, and any stuck on barnacles will be easier to remove.
   • Make sure to wear gloves when putting your conches in the solution, as well as when you remove them.
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Part 2 Part 2 of 3:

Removing Barnacles

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1. 1 Pick off any barnacles. A dental tool, flathead screw driver, or strong pick is used to pick off barnacles. Wedge the pick or tool under the barnacle and gently pry it off. This should be fairly easy, as the bleach should have loosened the barnacles.[3]
   • If barnacles are being stubborn, chisel them off using a hammer and screwdriver. Angle the screwdriver under the barnacle and gently tap on the end with the hammer. This should dislodge the barnacle.
2. 2 Scrub down your shell. After removing barnacles, take a scrub brush and wipe down your conches. Use light, scrubbing motions to remove any remaining dirt and debris form the shell.[4]
   • If some dirt or stains are not coming off, use your thumbnail to gently scratch them out of the shell.
3. 3 Let the shells air dry. It's important that your conch shells air dry. Set them in a dry place where they will not be disturbed, such as a cupboard or cabinet. Do not attempt to polish your shells until they are completely dry to the touch.
   • It can sometimes take conch shells awhile to completely dry, especially if you live in a cooler region. It is not unusual for shells to take a couple of days to dry completely.
4. 4 Cover your shell in oil. Once your shells are dry, they may look a little dull from the cleaning process. To brighten them up, dab some mineral oil onto a cotton pad or cotton ball. Rub the cotton on the shell and cover it completely with oil. If the shells is not as shiny as you want after one layer, add another.
   • If you do multiple coats, let the shell dry for 12 hours between each coat.
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Part 3 Part 3 of 3:

Avoiding Common Mistakes

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1. 1 Examine your shells before taking them from the beach. Make sure the shells you take from the beach do not house aquatic life. Tap the shell gently after picking it up to make sure it is empty. If you hear any scuttling, or see an animal in the shell, put it back where you found it.[5]
2. 2 Do not leave shells out in the sun too long. To dry your shells faster, you can place them out in the sun. However, do not leave them in the sun for more than a few hours. If shells are left in the sun for too long, they will start to lose color.
3. 3 Be careful not to crack the shell when removing barnacles. Be extra cautious when removing barnacles. Only use the chiseling method if it's absolutely necessary. You do not want to crack or damage your shell while removing barnacles.[6]
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Community Q&A

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• Question Will it harm or fade the pink inside of the shell? Community Answer If the shell is artificially colored, it may lose its color. Add a tad bit of mineral oil to brighten up your conch shell if it has dulled during the cleaning process. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 5 Helpful 7
• Question I have a very old, porous, fragile conch shell. I would like to paint it. Would I try to condition it with mineral oil first, or just go ahead and paint it? Should I start with a sealer? T. Chinsen Top Answerer Oil will prevent paint from sticking to the shell, and oil paints will need to used instead. Sealing the shell can do the same if too thick of a coating is applied. If paint and sealant are both water-based, you can combine them and apply it in one step instead of two. Read product label or call their help hotline for an answer. Milk has calcium and can remove ingrained dirt by depositing calcium on the shell under the dirt, causing it to lift off. It may take several days, and the shell needs to be completely covered. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 5 Helpful 6
• Question Should the water be hot to soak the shell in? T. Chinsen Top Answerer It depends on what you have planned for the shell. If you are short on time, or plan to add dye to color the shell, then using hot water can move the process along. If you are not in a hurry, a longer soak will work and can reduce damage to the shell. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 0 Helpful 1

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Things You'll Need

• Bleach
• Bucket
• Gloves
• Goggles
• Dental tool
• Flathead screwdriver
• Scrub brush
• Mineral oil
• Cotton pad
• Cotton ball

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References

1. ↑ https://www.sdnhm.org/science/marine-invertebrates/resources/faqs-on-marine-invertebrates/
2. ↑ http://www.iloveshelling.com/blog/2012/09/05/tutorial-for-how-to-clean-horse-conch-shells/
3. ↑ http://www.iloveshelling.com/blog/2012/09/05/tutorial-for-how-to-clean-horse-conch-shells/
4. ↑ http://www.iloveshelling.com/blog/2012/09/05/tutorial-for-how-to-clean-horse-conch-shells/
5. ↑ https://exit63.wordpress.com/how-to-clean-seashells/
6. ↑ http://www.iloveshelling.com/blog/2012/09/05/tutorial-for-how-to-clean-horse-conch-shells/

About This Article

Reviewed by: Amy Guerrero Arts & Crafts Specialist This article was reviewed by Amy Guerrero. Amy Guerrero is an Arts and Crafts Specialist and the Owner of Sunshine Craft Co., a crafting studio based in Phoenix, Arizona. Amy specializes in macrame, DIY crafting, and teaching fiber arts. She offers monthly in-person and online workshops along with having developed a range of DIY craft kits for at-home projects. Amy holds a BS in Industrial Design from Philadelphia University. She worked as a graphic designer before starting her own business. Sunshine Craft Co. is a creative hub that offers a wide range of workshops, tools, and resources for any craft project to inspire creativity and community engagement. This article has been viewed 117,466 times. 1 votes - 100% Co-authors: 4 Updated: June 26, 2025 Views: 117,466 Categories: Nature Crafts Article SummaryX

If you’ve found some nice conch shells you want to keep, you can easily clean them with things you probably already have at home. First, mix equal parts of bleach and water in a bowl and soak your conch shells for 24 hours. Lightly scrub your shells with a brush to remove any leftover dirt and grime. If they have any barnacles on them, use a flathead screwdriver, dental tool, or a strong pick to gently pry them off. Then, leave your shells to air dry. Once they’re dry, rub some mineral oil onto the outside of the shells with a cotton pad to make them nice and shiny. For more tips, including how to prevent your conch shells from fading, read on! Did this summary help you?YesNo

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Yes No Advertisement Cookies make wikiHow better. By continuing to use our site, you agree to our cookie policy. Reviewed by: Amy Guerrero Arts & Crafts Specialist Co-authors: 4 Updated: June 26, 2025 Views: 117,466 100% of readers found this article helpful. 1 votes - 100% Click a star to add your vote

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