Why Silver Tarnishes — and Why Prevention Beats Elbow Grease

Tarnish is chemistry rather than neglect. Silver reacts with traces of hydrogen sulphide in the air to form a thin film of silver sulphide — that soft yellow bloom, the brown haze over an engraved tray, the black that settles into the crevices of a spoon bowl. The reaction is quicker in warm, damp conditions and slower in cool, dry ones, which is why a well-sealed cabinet in a dry room will always beat an open shelf in a busy kitchen.

Here is the point that should guide everything else: every polish removes a little silver along with the tarnish. A heavy Georgian tablespoon has plenty of metal to spare. Silver plate, gilding and pieces with a fine antique patina do not. The purpose of good storage and display is not to make polishing easier — it is to make polishing rarer.

Know What Silver Reacts To

Most tarnish in a domestic collection can be traced back to a handful of materials. Keep them away from cutlery, salvers and teapots and you will halve the work.

• Rubber of any kind — elastic bands, rubberised matting, the soft grips on some wire stands. Rubber contains sulphur and will mark silver quickly.
• Untreated wool, felt and oak. Oak chests and dressers are lovely pieces of furniture, but the acids and tannins in the timber encourage tarnish. Wool and some felts behave similarly.
• Newspaper, cardboard and PVC. Use acid-free tissue instead, particularly for wrapping.
• Kitchen foods. Eggs, onions, mustard, salt, vinegar, citrus and cooked greens of the brassica family are all high in sulphur compounds. A silver spoon left in a mustard pot overnight will show you exactly what that means.
• Damp, sunlight and heat. A cellar, an unheated loft or a sunny windowsill are all poor homes for silver.
• Your hands. Skin oils, salts and acids leave prints that etch over time. Cotton gloves are cheap and take seconds to put on.

Line Drawers and Boxes Properly

Traditional green baize looks the part but does little to stop tarnish. For drawers, canteens and storage boxes, choose a dedicated anti-tarnish cloth — a fabric impregnated with activated carbon or a similar agent that absorbs the sulphur compounds in the air. Line the base and sides of the drawer completely, and replace the lining every few years as its effectiveness fades.

A few practical rules make a real difference:

• Nothing should touch nothing. Cutlery and serving pieces should each have their own slot, or be separated by anti-tarnish cloth or acid-free tissue. Metal on metal causes scratches, and contact points tarnish first.
• Use rolls and bags for flatware. Individual cutlery rolls and drawstring bags keep pieces apart and enclosed. Slip knife blades into a separate section from the handle if the handle is ivory, bone or composite.
• Add anti-tarnish strips to drawers, canteens and display cases, and renew them as the maker advises — usually every six to twelve months.
• Keep drawers well fitted. A yawning gap lets air circulate freely. A snug drawer slows tarnish noticeably.
• Never use cling film or polythene bags for long-term storage. They trap moisture against the surface.

Displaying Pieces Out in the Open

Silver is made to be seen, and no one wants a collection hidden in boxes. Where you display it matters enormously. A glazed cabinet with reasonably tight doors, sited away from radiators, open fires, kitchens and swimming pools, is the ideal. Add a small dish of silica gel inside and refresh it regularly. Avoid open shelving in a kitchen or utility room, and avoid oak surfaces.

Check the stands and supports, too. Flimsy wire stands, particularly those without padding, scratch polished surfaces and put stress on thin or repaired sections. Look for stands lined with cloth or felt, and lift a piece by its body rather than its handle — teapot handles especially are soldered on and unforgiving of a careless tug. Any piece left on open display will tarnish eventually, so rotate the collection. Keep the best pieces in the closed cabinet and let the rest take their turn on the shelf.

Polishing Without Doing Harm

Wash silver in warm water with a drop of mild washing-up liquid and a soft sponge. Never put it in a dishwasher, and never leave it to soak. Dry immediately with a soft, lint-free cloth.

Polish only when tarnish actually appears, and then gently. Work in straight lines rather than circles, use light pressure, and choose a good-quality silver polish or wadding polish rather than an abrasive cream. Toothpaste, scouring pads and wire wool have no place near a silver cabinet. A soft brush deals with engraving and beaded edges; a cocktail stick wrapped in cloth reaches into tight corners.

Dip solutions are convenient but selective. They strip the dark oxidation that gives antique silver its depth and character, and they can damage French-polished handles, ivory, pearl, coral, glued joints and gilt or vermeil surfaces. If in doubt, polish by hand. Afterwards, wash off every trace of polish residue — it is slightly abrasive and traps moisture — and dry thoroughly before returning the piece to its lined drawer.

Small Habits That Keep Silver Looking Its Best

Rinse and dry promptly after use rather than leaving pieces in the sink overnight. Empty salt cellars and mustard pots after the table is cleared; salt is genuinely corrosive to silver. If you use a silver vase, dry the inside thoroughly afterwards, or line it with a glass sleeve. Handle pieces with cotton gloves during polishing and storage, and lift them by the base or the body.

Finally, keep a note of what you own and how it is stored. A photograph and a short description of anything fragile or repaired will help you spot changes in condition early and remind you when linings and anti-tarnish strips are due for renewal. A little routine, applied consistently, keeps a collection looking as though it has just come out of the cabinet — which is exactly the point.