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Warm water, a few drops of mild dish soap, a soft brush and a thorough dry handle most day-to-day tarnish safely. Anything stronger — including the foil-and-baking-soda trick — belongs on plain, unplated silver with no stones set in it, and even there it is worth using sparingly rather than as routine.
Sterling silver is 92.5 percent silver alloyed with 7.5 percent copper for strength — the alloy the 925 stamp refers to — and that copper reacts with sulfur compounds in air, skin oil and some household products. The reaction produces tarnish: a thin film of silver sulfide that darkens from faint yellow toward black. It sits on the surface rather than eating into the metal, and the right routine removes it completely.
Trouble starts when a cleaning method removes more than tarnish. A tennis bracelet with rhodium plating and dozens of prong settings, or a cross pendant set with stones across its face, does not take aggressive cleaning the way a plain silver band does. Here is what is safe on almost everything we sell, and where popular home remedies are worth avoiding.
Why does sterling silver tarnish?
Tarnish is a chemical reaction, not dirt. Hydrogen sulfide and related sulfur compounds sit in ordinary air at low concentrations, and are also released by rubber, wool and skin itself. Silver reacts with them readily, forming silver sulfide on any exposed surface; humidity speeds this up.
Copper reacts with the same compounds and with skin acidity — the mechanism behind silver occasionally turning a finger green. Rhodium plating puts an inert barrier between skin and that copper-bearing alloy, part of why a plated piece tarnishes more slowly than bare silver — until the plating thins enough to expose the silver beneath.
What actually works for cleaning it at home?
For routine cleaning, warm water with a few drops of mild dish soap is enough. Soak five to ten minutes, work a soft brush gently around prongs and settings, rinse thoroughly, then dry immediately with a soft cloth — water left to air-dry leaves spots.
For actual tarnish, a treated silver polishing cloth is the safer next step before anything chemical: a mild, pre-loaded agent that removes light tarnish through gentle friction. It works well on flat, open sections. Used hard against a prong or a plated edge, repeated over months, it can thin the metal in that spot — so wipe the body of the piece and go lightly around any setting.
Why is the foil-and-baking-soda trick risky on plated or stone-set jewellery?
This method is real chemistry and worth understanding rather than just avoiding. Tarnished silver sits on aluminum foil in hot water with baking soda, often salt, dissolved in it. What forms is an electrochemical cell: aluminum is more reactive than silver, so it gives up electrons more readily, and the baking-soda solution acts as the electrolyte that lets those electrons move between the two metals. Silver sulfide on the tarnished surface gains those electrons and is reduced back to metallic silver, while the sulfur transfers across to the foil as aluminum sulfide instead. On plain silver with no plating and no stones, this genuinely works, and works fast.
The problem is that the reaction cannot tell tarnish apart from a thin decorative layer on the same silver. Rhodium plating runs to only a few microns at most, and this same process — run hot, and especially if repeated — is one of the things that wears rhodium plating down over time, alongside ordinary friction and chemical exposure. A single bath is unlikely to strip a plated piece outright, but it is not a routine worth building, and it cannot rescue plating that has already thinned.
Stone-set pieces carry a second problem: rinsing. A tennis bracelet's row of prongs, or a cross pendant with stones across its face, has small crevices where baking soda and salt do not rinse out easily, and residue left behind dries as a white film wedged against each stone. The foil-and-baking-soda trick works by an electrochemical reaction, and that same reaction is what makes it risky on rhodium-plated or stone-set pieces. Not because the chemistry is dangerous, but because it treats plating exactly like tarnish, and small settings are hard to rinse fully clean. Moissanite itself is chemically inert to everything on this list; the risk in every method here is to the metal and the setting, not the stone.
| Method | What it does | Plain silver | Rhodium-plated | Stone-set |
|---|---|---|---|---|
| Warm water + mild soap | Lifts oil and everyday residue | Yes | Yes | Yes |
| Silver polishing cloth | Removes light tarnish by friction | Yes | Lightly, away from edges | Lightly, away from prongs |
| Foil + baking soda bath | Reverses tarnish electrochemically | Yes | Use sparingly | Rinses poorly |
| Toothpaste | Abrades tarnish off physically | Not recommended | No | No |
| Chlorine bleach or ammonia | Oxidises the surface | No | No | No |
| Ultrasonic cleaner | Vibrates grime loose | Usually fine | No | No |
What should you avoid altogether?
Toothpaste, baking soda paste and chlorine all carry a real risk of scratching or pitting silver that ordinary tarnish never does. Toothpaste is the most common piece of bad advice here: most formulations carry fine abrasives meant to polish tooth enamel, and those same particles scratch silver and, more visibly, rhodium plating — a duller finish that further cleaning cannot fix.
Chlorine bleach and ammonia actively damage silver. Chlorine reacts with silver to form silver chloride, and unlike ordinary tarnish, that reaction can pit the surface rather than sit on top of it — one reason a pool, hot tub or household bleach is worth keeping sterling silver away from. Ultrasonic cleaners suit solid, unplated silver with no stones, but are not a safe default for plated or stone-set pieces: the vibration that loosens grime can also loosen a stone, and the same cavitation that cleans an open surface accelerates wear on plating.
How should you clean a piece with moissanite set in it?
Every moissanite piece we make — tennis bracelet, cross pendant, eternity band and the rest — sets its stones with metal prongs rather than glue, so heat or soaking is not a risk to an adhesive bond. At 9.25 on the Mohs scale, moissanite is among the hardest materials used in jewellery, which is part of why the stone itself is never the risk in any method here.
The real risk is mechanical, not chemical: a brush worked too firmly against a prong can bend it over time, and dried residue against a setting is more work to remove than it was to avoid. Soak, brush gently, rinse until the water runs clear, and dry straight away.
The same soft-brush method covers everything stone-set. The tennis bracelets and iced out pieces have the most crevices, so they are the ones to do slowly.
How do you slow tarnish down between cleans?
Store sterling silver in a dry, closed container — a lined box, a zip-seal bag with the air pressed out, or an anti-tarnish pouch — away from sunlight and humidity. An open dish on a dresser exposes every surface to air constantly; a closed container slows that.
Keep rubber bands and rubberised linings away from silver: vulcanised rubber is cured with sulfur and keeps releasing it, and a rubber band resting on silver can leave a dark line within days. Worn regularly, a piece often stays brighter than one left in a drawer, since daily wear removes light tarnish about as fast as it forms.
Every piece below is 925 sterling silver, and the moissanite pieces are set with prongs rather than glue — the same routine in this article applies to all of them.
- Moissanite tennis braceletprong-set the whole way round, the piece pictured above
Moissanite cross pendantgold or rhodium tone, stones set across the face
Moissanite eternity bandstones set the whole way round, three sizes
Marquise-cut moissanite ringelongated centre stone, gold-plated
Moissanite Miami cuban link braceletstones set along the links, the most settings to rinse clean
You can browse the full range by category — rings, earrings, bracelets and necklaces — or start with our best sellers.
Common questions
What is the safest way to clean sterling silver at home?
Warm water with a few drops of mild dish soap, a soft brush worked gently around any settings, a thorough rinse and an immediate dry. It handles routine tarnish and grime without risking plating or stones, and is the method worth reaching for first.
Is the foil-and-baking-soda trick safe for plated silver?
Not as a routine. It works through a genuine electrochemical reaction that reverses tarnish, but the same reaction acts on any thin metal layer it touches, including rhodium plating. It suits plain, unplated silver better.
Can I use toothpaste to clean silver jewellery?
No. Most toothpaste contains fine abrasive particles meant to polish tooth enamel, and the same particles leave fine scratches in silver and rhodium plating that a cloth cannot buff back out.
Does cleaning affect the moissanite stones themselves?
No. Moissanite is silicon carbide, rated 9.25 on the Mohs hardness scale, and it is chemically inert to soap, baking soda and the diluted salt used in the foil method. Every risk in home cleaning is to the metal and the setting, never to the stone.
How often should sterling silver jewellery be cleaned?
A quick soap-and-water rinse every few weeks of regular wear is enough to stop tarnish building up. Reserve a polishing cloth, and anything stronger, for when actual discolouration appears rather than using it as routine maintenance.
We answer shipping, returns, sizing and payment questions on our FAQ page. If something here is not covered, get in touch and someone from the workshop will answer.
References
The chemistry here — the foil-and-baking-soda mechanism, chlorine's reaction with silver, and the sulfur content of vulcanised rubber — is drawn from published chemistry and materials-science sources rather than jewellery marketing copy. Rhodium figures match our earlier article on rhodium plating. Moissanite's 9.25 Mohs hardness and its identity as silicon carbide are established gemmological figures.
