The Journal

How to Care for Solid Brass

September 24, 2026

Solid brass behaves differently from most metals people own — it is meant to change over time, and understanding that change is most of what you need to know to care for it well.

Patina versus tarnish

Patina is the natural darkening and deepening of colour brass develops with age and handling — it is not damage, and many people prefer it to a freshly polished finish. Tarnish, more precisely, refers to a duller, sometimes blotchy surface reaction, often from moisture or inconsistent handling, and is usually what people mean when they say brass looks "dirty" rather than aged.

Should you polish it?

This is a matter of preference, not correctness. Antique-finish brass, like ours, is designed to be handled and to deepen in colour — polishing it removes that character and returns it closer to a bright, new-looking finish. Neither is wrong. If you like the darkened, lived-in look, leave it alone. If you prefer brightness, polish it.

How to polish brass safely

Use a dedicated brass polish and a soft cotton cloth, applied in small circular motions. Rinse any residue and dry thoroughly afterward, since moisture left on brass encourages tarnish. Avoid abrasive pads or anything with grit, which can scratch the surface.

Polishing around engraving — the important part

Avoid polishing directly over engraved lines with any pressure. The definition of an engraving comes from the shadow inside the cut grooves, and aggressive polishing can gradually soften that definition over years of repeated cleaning. A soft cloth with light pressure, or simply wiping around the engraved area, preserves crispness far longer.

Everyday care

Handling brass regularly, with clean dry hands, actually helps it develop an even patina rather than blotchy tarnish. Avoid leaving it in damp environments — a bathroom shelf, for instance — for long periods, since humidity accelerates uneven tarnishing.

Storage

A wooden box, like the one your compass ships in, is ideal storage — it protects from moisture and dust while still allowing the brass to breathe and age naturally, unlike a sealed plastic bag which can trap humidity against the metal.