How do you clean stainless steel jewelry?

Stainless steel is genuinely durable, and that is exactly why care instructions get skipped. A buyer reads "stainless" and assumes nothing needs saying. Then a customer wears a PVD-gold ring in a swimming pool for a summer and the colour dulls, and the brand absorbs the complaint.

What is actually on the surface?

Two different things, behaving differently.

• The steel. 304 or 316L, with a passive chromium-oxide layer that re-forms if scratched. Water, sweat and everyday wear do not damage it.
• The colour layer, if there is one. PVD deposits a thin ceramic-metal film measured in microns. It is hard and it is not paint, but it is thin, and it sits on top of the steel rather than inside it.

Care instructions are about the second layer. The steel rarely needs help.

What removes everyday residue?

Warm water, a drop of mild soap, a soft cloth. That is the whole method:

1. Mix lukewarm water with a small amount of pH-neutral dish soap.
2. Wipe with a soft cloth — microfiber or cotton. Not a paper towel, which is abrasive enough to haze a mirror polish over time.
3. Rinse in clean water and dry completely, including the back of the piece and any stone settings.
4. Polish with a dry cloth before storing.

Body oils, sunscreen and hand cream come off this way. None of them damage the steel.

What damages a PVD finish?

Three things, in order of how often they cause complaints:

• Chlorine. Pools and hot tubs are the single most common cause of colour dulling. One swim is not fatal; a summer of them is.
• Abrasion. Keys in the same pocket, a ring worn while lifting weights, jewellery stored loose in a bag. PVD wears at edges first — the crown of a ring, the edge of a pendant.
• Harsh chemistry. Bleach, ammonia-based cleaners, acetone, perfume sprayed directly onto the piece.

Ultrasonic cleaners belong on this list too. They are excellent for uncoated steel and risky for coated pieces, because cavitation can lift a film at the edges.

What should the care card say?

Four lines cover it, and they cost nothing to print:

• Remove before swimming, showering with soap, or cleaning with chemicals.
• Store separately, in the pouch provided, to avoid scratches.
• Wipe with a soft dry cloth after wearing.
• Avoid perfume and hairspray on the piece itself.

Brands that print this get fewer "it faded" emails. Brands that print "stainless steel, will not tarnish" get more.

Does stainless steel tarnish at all?

Uncoated steel can develop surface marks from residue and hard water, which polish out. It does not develop the green verdigris of brass or the black sulphide film of sterling silver. Coated pieces change appearance only through wear of the coating, which is a different failure mode — and a preventable one.

If you are specifying care cards for a collection, the wording should match the finish you are actually shipping. We write the technical part with you at sampling stage, before the cards go to print.