How to clean tarnished sterling silver jewellery

Tarnish on sterling silver is silver sulphide forming on the surface, and it comes off with a polishing cloth worked by hand — no soaking, no electrolytic trick, no dip solution needed for most pieces. The method changes once stones, glue or patina are involved.

The jars

Why sterling tarnishes in the first place

Sterling silver is 92.5% silver and the rest copper, and both react with sulphur compounds in ordinary air — not from dirt, but from the air itself, plus sweat, and anything containing rubber or wool nearby. The result is silver sulphide: a thin, even grey-to-black layer that sits on the surface rather than eating into the metal, which is exactly why it comes off rather than needing to be worn away. A piece kept in a sealed bag tarnishes far slower than the same piece sitting out on a dish, because it is the air doing the work, not time on its own.

The safe method: a polishing cloth, by hand

A rouge-impregnated polishing cloth, sold for silver specifically rather than a generic jewellery cloth, removes sulphide mechanically, a few microns at a time, without touching the metal underneath. Work the flat, raised surfaces — the parts a finger would naturally touch — and leave the recesses of a cast design alone. On a ring or a brooch with any engraving, this is the whole technique: short strokes in one direction, checking the cloth itself for the grey transfer that shows it is working, and stopping once the flat areas are bright again. There is no soaking step and no rinsing step; water does not belong in this method at all.

What a dip solution removes that you didn't mean to lose

A commercial silver dip works by dissolving sulphide chemically rather than lifting it off mechanically, which is why it is fast and why it is indiscriminate. It strips tarnish from a flat surface and from every recess at the same identical rate, including the deliberate darkening in a cast design that a maker relied on to make a pattern readable. A piece dipped this way comes out uniformly bright and, on anything with real detail, visually flatter than before — the contrast that made the design legible is gone along with the tarnish. Dip solutions also attack anything plated rather than solid: a thin layer can be stripped through to the base metal in seconds, which a cloth cannot do.

Baking soda and foil: why we don't use it on vintage pieces

The foil-and-baking-soda method uses an electrolytic reaction — aluminium foil, hot water and a sulphate salt — to pull sulphide off the silver chemically, and it works quickly on plain sterling with no stones or glue. The problem on vintage jewellery specifically is everything the method cannot tell apart: a soldered seam, a glued setting, a foil-backed stone or plating over base metal all sit in the same hot solution as the sterling, and the reaction does not stop politely at the edge of the silver. We don't run it on anything that goes into a jar, and we wouldn't recommend it on a vintage piece you can't easily replace either — a polishing cloth is slower, but it only ever touches what you're actively rubbing.

Pieces where cleaning is not the point — stopping instead

Some vintage pieces should not be polished at all, not because polishing would fail but because something else on the piece is more fragile than the tarnish. Foil-backed rhinestones lose their fire permanently if water or solvent gets behind the setting, so cleaning around them stays dry and stays off the stone itself. A glued cabochon can be knocked loose by vigorous rubbing near the setting. Pearls and enamel don't tarnish at all and shouldn't be treated as if they had — a cloth meant for silver can scratch both. We've written separately about handling foil-backed stones and strung pieces; the short version here is that a tarnished metal edge next to a fragile stone gets cleaned around, not through.

Keeping tarnish off in the first place

Air is the whole mechanism, so cutting off the air is the whole prevention. Store pieces dry and separated, in a closed bag or a box with a lid rather than loose in a tray, and keep them away from wool, felt and rubber bands — all three release sulphur compounds that accelerate tarnish on anything silver nearby, including pieces that aren't even touching them directly. A piece worn regularly tarnishes slower than one left untouched in open air, because the mild acids in skin interrupt the same reaction that dulls the surface when left alone — which is also why a piece that sat in a drawer for years often needs more work than one that was worn.

The dealer's notes

How do you clean tarnished sterling silver jewellery?

With a rouge-impregnated polishing cloth, worked dry by hand over the flat surfaces and left alone in the recesses of any cast design. No soaking, no dip solution and no electrolytic trick needed for an ordinary tarnished piece.

Does toothpaste clean silver jewellery?

It can, because most toothpaste is a mild abrasive, but it's a worse tool than a dedicated polishing cloth: the abrasive grain is coarser and less even, and it's easy to scrub too hard on a soft, recessed design. If you only have toothpaste, use a plain one, work gently, and rinse and dry thoroughly afterwards — but a cloth made for silver does the same job with less risk.

Is the baking soda and foil trick safe for vintage silver?

Not on a piece with stones, glue, plating or a soldered repair, which describes most vintage jewellery. The electrolytic reaction strips sulphide from bare sterling quickly, but it doesn't stop at the edge of the silver, and the materials it can damage are exactly the ones a vintage piece is likely to have.

Why does my sterling silver tarnish faster than other people's?

Humidity, nearby rubber or wool, and how often the piece is worn or left exposed to air all change the speed. A piece stored loose in a humid bathroom tarnishes far faster than the same piece kept dry in a closed bag, regardless of the silver itself.

Can I clean a sterling silver piece that has stones or pearls set in it?

Clean the metal, not the stone: a dry polishing cloth on the silver only, worked away from the setting, with a dry cotton bud for anything closer to the stone than the cloth should go. Pearls and foil-backed stones should never get water or dip solution near them, whatever cleaning method you're using on the metal.

By Anush · updated 26 Oct 2026