How to Clean a Porcelain Sink: Soap First, Then What Your Maker Says About Stains

White glazed ceramic farmhouse kitchen sink with an empty, dry basin and a folded linen cloth over the apron edge, lit by soft window light

Wash it with warm water and a little liquid soap, rinse it, and dry it. That is where Dakota Plumbing Products' porcelain and fireclay care guide (© 2025) starts, and Franke's page on its ceramic sinks (page copyright 2026) describes the same daily routine with a soft damp cloth and ordinary dishwashing liquid. Everything after that is for the stains that survive it. Below, the steps come in order, and then a table shows where sink makers part ways on bleach, vinegar and abrasives, because the right answer depends on what your sink is made of.

What kind of porcelain sink do I have?

"Porcelain sink" covers more than one build, and the makers keep separate instructions for each. Houzer's care and maintenance page (page copyright 2026) lists fireclay sinks and porcelain-enameled steel sinks as separate entries. Kohler's kitchen sink care page (page copyright 2026) splits enameled cast iron from vitreous china and fireclay. Your sink's label, manual or order confirmation usually names the build, and our guide to the main types of kitchen sink shows how to tell them apart. If you cannot find out, stay with soap, water and a soft cloth, which every maker below lists.

How do I clean a porcelain sink, step by step?

1. Clear the basin

Take out the dishes, cloths, sponges and anything that stains. Kohler says to avoid leaving dirty dishes, coffee grounds, tea bags or other staining materials on the enamel of its cast iron sinks for long stretches (Kohler, page copyright 2026), and Houzer gives the same warning for porcelain-enameled steel (Houzer, page copyright 2026).

A wet cloth needs somewhere to go while you work. A HAPPY SiNKS® Magnetic Dishcloth Holder in steel hangs the cloth clear of the sink so it dries quickly, and the product page for our steel sink set says each holder lifts off in a second when you want to rinse it. On a porcelain or fireclay sink there is one extra piece. The holder pages list ceramic and stone sinks as not suitable on their own, and the Magnetic Holder Adapter page names porcelain among the surfaces it is made for. You peel the backing, stick the adapter to a dry spot on the inside wall of the sink, and place the holder on the other side. The adapter is not listed in every country's store, so if you do not see it where you shop, write to us with your sink type.

2. Wash with warm water and liquid soap

Use a soft sponge or cloth. Dakota's guide suggests clearing food, soap and toothpaste build-up first, because a clean surface shows which stains or scuff marks need a deeper clean. Franke's cleaning page for ceramic sinks calls for a soft microfiber cloth and warm water (Franke, page copyright 2026), and Kohler says never to use a brush or scouring pad on its surfaces.

3. Rinse well, then dry

Rinse until no soap is left, and wipe the basin dry with a soft cloth. Dakota says to wash away all soapy residue and dry with a dish towel, Kohler asks for a thorough rinse and a dry wipe after each use, and Franke asks for a thorough rinse with warm water before drying. Franke also says to clean regularly, or straight away when something spills, because limescale, detergent, leftover food and rust get much harder to shift once they build up (Franke, page copyright 2026).

4. Deal with the stains that stay

Go from the gentlest option to the strongest, and stop when the mark is gone. The table sets out what each maker says for the marks people ask about most. Where the makers differ, it says so.

Common marks on a porcelain, fireclay or enameled sink, and what the sink makers say
What you see	What the makers say
A dull film or limescale	Franke recommends vinegar or lemon juice based cleaners (pH 1 to 4) and says the harder the water, the longer they need to work. Houzer suggests a 50/50 mix of water and vinegar for harder stains on fireclay and porcelain-enameled steel. Dakota offers undiluted white vinegar, a non-abrasive sponge and circular motions, then a thorough rinse, for anyone concerned about bleach on an antique sink.
General staining on a white sink	Dakota says bleach is for white porcelain only: spray it over a layer of paper towels, leave it 30 minutes to an hour, then rinse completely. It says never to use chlorine bleach on colored or vintage porcelain, and names liquid oxygen bleach such as hydrogen peroxide as a slower, less caustic option for both. Houzer says no bleach solution on fireclay and no undiluted bleach on porcelain-enameled steel. Kohler says not to let any cleaner soak.
Marks that survive soap and vinegar	Dakota allows a mild abrasive cleanser used sparingly and warns it can discolor and scratch porcelain. Kohler allows soft abrasive cleaners on vitreous china and fireclay, says strong ones scratch and dull the surface, and for enameled cast iron says to use abrasives sparingly on stubborn stains. Franke says to avoid abrasive cleaners that leave a matte finish.
Gray or black lines from pans and cutlery	Franke says these metal marks cannot be removed by fine means, and suggests a liquid stainless steel cleaner, a car-body polish or a ceramic hob cleaner. Its own material page also lists cleaners for steel among the things to avoid on its ceramic sinks, so test a small hidden spot first. Dakota's guide marks acid and rust-removal treatments for metal stains as professionals only.
Rust-colored marks	Franke warns that fluoride-containing products such as rust removers and toothpaste can leave long-term stains. Dakota lists the rust treatment it describes as professionals only.

Dakota, Franke and Houzer all begin with soap or mild detergent and water, and Kohler and Houzer both rule out steel wool and scouring pads. Kohler also asks you to test any cleaner on a small hidden patch first, and Franke says to follow the cleaner maker's directions. Bleach is where they split, which is why the care sheet for your own sink outranks any general guide. On mixing, Dakota says to remove every trace of vinegar before trying oxygen bleach, and Franke says never to mix detergents. Use one product at a time and rinse in between.

5. Put everything back

With the basin dry, set the holder back against its adapter and hang the cloth up. The care instructions on the holder pages say to wipe the holder with a wet cloth and let it dry thoroughly, and not to submerge it or put it in a dishwasher. The steel dishcloth holder has a removable handle, which the product page says makes it easier to clean.

What should I keep away from a porcelain sink?

Steel wool and scouring pads, strong abrasives, and anything left sitting on the surface.

Steel wool, wire brushes and scouring pads. Kohler lists steel wool, wire brushes and abrasive sponge pads as off limits for its enameled cast iron, and Houzer says steel wool and scouring pads might damage fireclay and porcelain-enameled steel.
Ammonia and alkali cleaners. Houzer says to keep harsh abrasive or caustic cleaners containing ammonia or alkalis away from both builds.
Fluoride products. Franke names rust removers and toothpaste as products that can leave long-term stains on ceramic.
Hot pans and boiling water. Houzer says not to put hot pots directly on a fireclay sink, and to run cold water in the basin when you pour boiling water into it.
Coffee grounds and tea bags. Kohler and Houzer both ask you not to leave staining materials on the surface for long.

Quick answers

What should I clean a porcelain sink with?

Warm water, liquid soap and a soft sponge or cloth. Dakota starts there, Franke describes a daily clean with a soft damp cloth and dishwashing liquid, and Houzer lists soapy water or mild dish detergent for everyday dirt on fireclay and porcelain-enameled steel. Rinse and dry afterwards.

What should I not use on a porcelain sink?

Steel wool, scouring pads, wire brushes, strong abrasives, and ammonia or alkali cleaners. Kohler and Houzer both rule out steel wool and scouring pads, and Houzer adds ammonia and alkalis.

Can I use bleach on a porcelain sink?

It depends on the maker. Dakota allows bleach on white porcelain only and never chlorine bleach on colored or vintage porcelain, while Houzer says no bleach solution on fireclay and no undiluted bleach on porcelain-enameled steel. Check your sink's own care sheet first.

How do I get stains out of a porcelain sink?

Wash and dry first, then try vinegar, and only then a mild abrasive used sparingly. The table above sets out what each maker allows at each step.

How often should I clean a porcelain sink?

Kohler asks for a thorough rinse and a dry wipe after each use, and Franke says to clean regularly or straight away when something spills.

Can I use a magnetic sponge or dishcloth holder on a porcelain sink?

Not on its own. The HAPPY SiNKS product pages list ceramic and stone sinks as not suitable for the holders by themselves, and the Magnetic Holder Adapter page names porcelain among the surfaces it is made for. The adapter is not listed in every country's store.

The short version

Wash with warm water and liquid soap, rinse, and dry. Check which kind of sink you have before you reach for bleach, because Dakota and Houzer differ on it. Keep steel wool and scouring pads away from the enamel and the glaze. If the cloth in your sink is the thing you keep fishing out, the Magnetic Dishcloth Holder in steel is the next thing to look at, and every option is on the magnetic dishcloth holders page. Steel sink owners have their own routine in our guide to cleaning a stainless steel sink.

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