Prep first
Before you start
- Let the mud dry, then brush, scrape or vacuum off what you can.
- Rinse what's left with cold water.
- Hold off on any cleaner until you've tested it on a hidden spot.
Mud in a bathtub is soil, fine particles that work into whatever surface they touch, and wet mud smears and sinks in fast. Let it dry and brush off as much as you can before any cleaner goes near it. The material your tub is made from decides which cleaner is safe to use.
Before you clean a dirt stained bathtub, identify whether it's acrylic, enameled cast iron or vitreous china, since that sets what you can use. Dirt stains come up easiest while they're still fresh, so don't let them sit. If old dirt stains in the bathtub won't budge, or the surface already looks worn, call a professional rather than scrub harder.
Before you start
What bathtubs can take
Safe to use1
- Water
Use with care4
- Soaking
- Chlorine bleach
- Acids (vinegar, lemon)
- Scrubbing and abrasives
Avoid1
- Solvents (alcohol, spot removers)
7 items
What you'll need
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- Soft brush or plastic scraperLifts dried mud without scratching the tub. (opens Amazon)
- Vacuum with a brush attachmentPulls up loose grit in one pass.
- Soft sponge or clothWipes the surface and carries any cleaner. (opens Amazon)
- Mild soapThe wipe for vitreous china, used with warm water. (opens Amazon)
- General-purpose cleaner listed for your bath materialFor heavier soiling, only if the label matches your tub. (opens Amazon)
- Soft abrasive cleanerFor stubborn spots on enameled cast iron or vitreous china only. (opens Amazon)
- Clean soft towelBlots the tub dry after the final rinse.
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7 steps
Step by step
Step 1 of 7
Let the mud dry first
Mud is soil, and wet mud smears and sinks into the surface, so give it time to dry. Once it's dry and loose, brush, scrape or vacuum off as much as you can, working from the edges toward the middle so the loose bits don't drag across clean surface.
Careful. Don't rub wet mud in; blot it and let it dry first.
Step 2 of 7
Rinse off what's left
Rinse whatever is left with cold water so the water carries off the loose grit. Keep rinsing until no gritty film remains on the surface.
Careful. Hot water can set the stain, so start with cold.
Step 3 of 7
Test your cleaner in a hidden spot
Before you use any cleaner on the mud, try it on a hidden spot such as a low corner of the tub. Let it dry, then check for dullness, marks or a changed color before you go further.
Tip. Use the same cloth you plan to use on the mud so the test is fair.
Step 4 of 7
Wipe the tub gently
Dampen a soft sponge or cloth and wipe the mud area in short strokes. On vitreous china, mild soap and warm water is the right wipe, and it should be enough for light marks. If the tub is heavily soiled, work a general-purpose cleaner listed for your material into the area with the same soft sponge.
Tip. Wipe from the clean area toward the dirty area so you don't spread the mud.
Step 5 of 7
Rinse right after cleaning
Rinse the whole area with plenty of water as soon as you've applied any cleaner. Quick rinsing keeps the cleaner from sitting on the finish.
Careful. Don't let cleaners soak on the surface, and rinse overspray off nearby surfaces.
Step 6 of 7
Lift stubborn spots gently
If a mark stays and the tub is enameled cast iron or vitreous china, use a soft abrasive cleaner sparingly on that spot only. Work it with water the whole time, then rinse fully.
Careful. Never use an abrasive cleaner on acrylic, and never use one without water.
Step 7 of 7
Blot the tub dry
Blot the tub dry with a clean, soft towel so no water spots or cleaner film are left behind. Check the spot in good light, and if a mark remains, repeat the wipe and rinse.
If you'd rather buy than mix
Best products for mud on bathtubs
Choose a general-purpose cleaner labeled for your bath material, and keep a soft abrasive cleaner on hand only if your tub is enameled cast iron or vitreous china.
Amazon Basics Microfiber Cleaning Cloths
How we picked these: each product is made for this type of stain, its maker doesn't warn against using it on bathtubs, and its directions fit the steps above.
Finished the steps? How does it look?
Nice work. Let it dry completely and check it again in good light. Here is what done looks like:
How to tell it's really gone →A faint mark usually needs one more round, not a stronger product.
Heavy buildup usually takes more than one round.
Heavy or long-standing buildup →When to call a professional →How to tell it's working
The mud is gone when the surface feels smooth under your fingertips and no grit shows in good light. The cleaned area should look even, with no dull patch or film, once the tub is blotted dry.
What changes for yours
Adjust for your bathtubs
Acrylic bathtub
On acrylic, the gentle wipe from the steps is the whole method, done with a soft sponge or cloth. Rinse as soon as you've wiped, and skip any tool that could mark the finish.
If the finish is already dull or scratched, cleaning won't restore it, and that repair belongs to the manufacturer.
Airjet acrylic bath
An airjet bath has jets and fittings set into the basin, so work around them with a soft cloth rather than a brush that could catch. Stick to the wipe from the steps or the general-purpose cleaner listed for your material, and rinse the jet area well after each pass.
Because the stronger chemical options are off the table here, a stubborn mark is better handled by repeating the wipe and rinse than by reaching for a harsher product.
Enameled cast iron tub
Enamel on cast iron still needs gentle handling, so start by lifting the loose grit with a soft brush or vacuum before any cleaner touches it. Then move to the wipe from the steps.
For a spot that won't budge, the soft abrasive from the steps is the only scrubbing option, and it should stay sparing and wet. Improper care and cleaning can void a cast iron warranty, so keep to these methods and check the manufacturer's care guidance if you're unsure.
Vitreous china tub
Vitreous china starts with the mildest wipe in the steps, and that's your first move before anything stronger. Move up to a general-purpose cleaner only for heavy soiling, and rinse thoroughly each time.
The soft abrasive is for stubborn spots only, used sparingly with water. Once the mud is gone, blot the surface dry so the glaze looks even.
Heavy or long-standing buildup
Old mud that has been sitting for a long time, or has dried into a crust, won't come off with one wipe. Start by brushing or scraping off the crusted part before any cleaner goes near it.
Dried mud often needs repeated passes, so repeat the wipe and rinse, and rinse right away every time rather than letting anything sit. Keep each pass short.
If a mark is still there after several passes, the soft abrasive can help on enameled cast iron or vitreous china, used sparingly and with water. On acrylic, don't push harder, since a dull or scratched finish needs manufacturer repair. Realistically, a deep old mark may fade rather than vanish, so stop once the tub looks clean and the finish is intact.
Vinegar, baking soda, peroxide and more
Do home remedies work on mud on bathtubs?
Home remedies for tub stains often come from fabric or food guides, so most don't carry over to a bathtub. Only a few are safe on a bathtub, so rinsing and a soft damp cloth do most of the work.
Skip5Avoid1
What makes it worse
Mistakes to avoid
Don't use solvents on your tub
Solvents are off limits on acrylic, enameled cast iron and vitreous china alike. Reach for a cleaner listed for your bath's material instead, even when the mud looks stubborn.
Don't scrub cast iron with steel wool
Steel wool, wire brushes and abrasive pads can scratch the enamel on cast iron. The soft abrasive used sparingly with water is the gentler option for a stubborn spot.
Don't use strong abrasives or ammonia on china
Strong abrasive cleaners scratch and dull vitreous china, and ammonia cleaners can damage its finish. Keep to the gentle wipe from the steps, and use the soft abrasive only on stubborn spots.
Don't spray aerosols on acrylic
Aerosol cleaning products are a poor fit for acrylic. Use a liquid cleaner on a cloth so you can control how much goes on the surface.
Don't mix cleaners in the tub
Mixing products can give off hazardous fumes, and chlorine bleach with ammonia is the worst pairing. If you need more than one product, rinse the tub thoroughly between them.
Don't use full-strength bleach on an airjet tub
Full-strength bleach can damage an airjet acrylic bath. Ammonia is just as off limits there, so stick to the wipe from the steps and the general-purpose cleaner listed for your material.
When to call a professional
If a mark stays after all the steps, stop before you try anything stronger and ask a professional to look at it. A repair or refinishing job is outside what cleaning can fix.
Questions
How do you get dirt stains out of a tub?
Start with the dry-mud removal and cold rinse at the top of the steps, since loose mud is far easier to lift. Once it's loosened, finish with the wipe and rinse, then blot the tub dry.
Will dried mud stain my bathtub permanently?
Usually not, if you act while the mud is still loose. Mud that has dried and sat a long time can leave a mark that needs repeated passes before it lifts.
Can I use a scrub brush on my bathtub?
A soft brush works for loosening dry mud, but scrubbing options are limited. On enamel or china, the soft abrasive from the steps is the only scrub, and on acrylic a soft sponge or cloth is the right tool.
What if I don't know what my tub is made of?
Check any paperwork or label you can find before choosing a cleaner. If you still can't tell, stick to a soft cloth with water and mild soap until you know, and hold off on anything stronger.
Can I use a general-purpose cleaner on my tub?
Yes, when it's listed for your tub's material and you've tested it in a hidden spot first. Use only as much as lifts the mud, and wipe it on with the soft sponge.
Can I use a tub cleaner on the shower glass next to it?
The glass has its own method, covered in the Showers & Glass Doors guide, so start there for the glass. The steps here are for the tub surface itself.
Does set-in mud need a stronger product?
Usually not right away. Repeat the wipe and rinse, then use the soft abrasive on enamel or china if a mark is left, since repeated gentle passes are the approach here.
Mud on other materials
Other stains on bathtubs
Start from the bigger picture
How we know this
Every method, amount and warning here comes from university extension services, industry bodies and product makers. We read them, check every step for unsafe combinations and changed amounts, and write it up so you can follow it.