How to Clean a Sink

To clean a sink properly, work from the outside in: first wipe the basin and surrounding counter to clear away hair, food, and residue, then scrub the basin with a baking-soda paste or a 50/50 vinegar-and-water solution, and clean the drain last so the debris you loosen doesn’t immediately re-clog it. For a smelly drain, pour in baking soda followed by vinegar, let it fizz 10 minutes, and flush with hot water. Match the cleaner to your sink material — baking soda and vinegar are safe on stainless steel and most composites, but never use vinegar on marble or natural stone, which it etches. Here’s the full guide.

Step 1: Choose your cleaning product

People usually notice a sink needs cleaning when the drain starts to smell — but the first mistake is going straight for the drain. Start by picking the right cleaner for your situation, since the wrong store-bought product can be ineffective or even damage your sink.

Factors to consider

• What’s your sink made of? This matters most. Stainless steel and composite sinks are durable; marble and other natural stone are porous and easily etched or scratched, so they need pH-neutral, stone-safe cleaners only — no vinegar, lemon, or abrasives.
• Toxic vs. non-toxic. Since you put dishes and food in the kitchen sink, gentler, food-safe cleaners are preferable there.
• Effectiveness for the grime you’re dealing with.

Homemade cleaning options

Homemade cleaners are natural, cheap, and effective for most sinks (with the marble/stone exception above).

Baking soda and vinegar

Baking soda scours and deodorizes; a vinegar-and-water solution cleans and freshens. They’re cheap, you probably already have them, and they’re non-toxic. (Note: vinegar cleans and deodorizes but isn’t an EPA-registered disinfectant — if you specifically need to disinfect, use an appropriate disinfecting product per its label, and never mix it with vinegar or other cleaners.)

Vinegar-and-water cleaner

Mix a 50/50 ratio of white vinegar and warm water in a spray bottle for an everyday cleaner that works on stainless steel and composite sinks and surrounding counters, in both bathrooms and kitchens. Skip this on marble, granite, or other natural stone — the acid etches and dulls stone. For stone sinks, use a dedicated stone cleaner or a drop of mild dish soap in water.

Step 2: Start with the basin

Clean the basin and surrounding area before the drain — it clears the hair, food, and residue that would otherwise wash down and clog the drain you’re about to clean.

1. Wipe the basin and nearby counter with a cloth sprayed with the vinegar solution (or a disinfecting wipe), clearing away hair, food, and debris.
2. Soak a sponge or cloth in the warm vinegar-water mix and scrub the basin and surround to lift anything stuck on. For tougher spots, sprinkle baking soda directly and scrub — its mild abrasion handles stains and water marks without scratching (on stainless and composite).
3. Optionally, plug the basin and fill with hot water and a splash of vinegar; let it sit 10 minutes, then drain. (Stainless/composite only — not stone.)

This works for stainless, composite, ceramic, and (with stone-safe cleaners instead of vinegar) granite or marble sinks. Always confirm a store-bought product is safe for your material.

Step 3: Clean the drain

With the basin done, handle the drain. Kitchen and bathroom drains are treated similarly.

The baking soda method (try this first)

Pour a half cup of baking soda down the drain, follow with one cup of white vinegar, plug the drain, and let it fizz 10 minutes. Flush with hot water. This freshens and clears mild buildup and is safe for pipes.

For a real clog: mechanical first

For an actual clog, the safest and most effective tools are mechanical, not chemical: a plunger, a drain snake (auger), or removing and cleaning the P-trap under the sink (put a bucket beneath it first). These physically clear the blockage without harsh chemicals.

If you use a chemical drain cleaner, do it safely

Chemical drain cleaners (like Drano) can work on hair and grease clogs, but use them carefully:

• Never mix them with anything — not vinegar, baking soda, or another drain product. Combinations can react violently and release dangerous gas or heat. If you already used baking soda and vinegar, flush thoroughly with water first.
• Never plunge after using a chemical cleaner — if it hasn’t cleared the clog, plunging can splash caustic liquid back onto you.
• Don’t use them in a sink with standing water you can’t clear, repeatedly, or on a system with a septic tank or older/damaged pipes, where they can cause damage. Follow the label exactly, ventilate, and wear gloves.
• When in doubt, a plunger, snake, or a call to a plumber is safer than repeated chemical use.

How to fix a smelly kitchen drain

After clearing the drain with the baking-soda method, freshen it with:

• Chopped lemon or citrus peels (especially good run through a garbage disposal)
• Orange peels
• A baking-soda follow-up (it absorbs odors)

A persistent smell despite cleaning can mean a dry or blocked P-trap or disposal buildup — worth investigating rather than just masking.

Step 4: A final wipe-down

Once the basin and drain are clean, return to the vinegar solution (or stone-safe cleaner) and wipe down the whole area — basin, faucet, handles, and surround — for an overall fresh finish. Buffing a stainless sink dry with a microfiber cloth prevents water spots and brings up the shine.

The takeaway

Just rinsing water and dish soap around the basin doesn’t really clean a sink — and it won’t touch a smelly, clogged drain. Homemade baking soda and vinegar handle most sinks cheaply and non-toxically. The two things people get wrong: cleaning the drain first (so it re-clogs when you rinse the basin down it — do the basin first), and assuming every sink takes the same cleaner. Vinegar and baking soda work on most sinks, but never use vinegar on marble or natural stone, and check that any store-bought product is safe for your material before using it.