How to polish brass in ten minutes

Brass does not rust. What you are looking at when a brass bell or a brass locket goes dull is oxidation, a thin film where the metal has met the air and reacted with it. It is not damage and it is not permanent. Ten minutes with something from your kitchen cupboard will take it back to bright, and the metal underneath is exactly as it was.

The lemon and salt method

This is the one we use on our own pieces, and it costs nothing beyond what is already in the house.

1. Cut a lemon in half and tip a tablespoon of salt onto a saucer.
2. Dip the cut face of the lemon into the salt and rub it over the brass in small circles.
3. Work it into hinges, clasps, and any engraved lines with an old soft toothbrush.
4. Rinse under warm water and dry it at once with a clean cloth. Brass left wet will spot again within the hour.
5. Buff with a dry cotton cloth until it takes a shine.

The acid in the lemon dissolves the oxide layer, and the salt gives it something to grip while it works. On a piece as small as a locket this takes under five minutes. A bell with a turned handle takes a little longer because of the join.

The commercial polish method

A proper brass polish, wadding or liquid, will do the same job faster and with less scrubbing, which matters if the tarnish has sat for a year rather than a month. Apply a small amount on a soft cloth, work it in, let it haze over for thirty seconds, then buff it off with a second clean cloth. Read the label before you use one on anything lacquered, which brings us to the distinction that actually matters.

Lacquered versus unlacquered

Some brass is sealed at the factory with a clear lacquer that keeps it bright indefinitely and stops it from tarnishing at all. Ours is not. We leave it unlacquered on purpose, because a sealed surface cannot be polished if it scratches, and because the metal ages better without one. If you own a lacquered piece, do not polish it. The abrasive will cut through the coating in patches, and you will end up with tarnish in some spots and bare shine in others, which is worse than an even patina and much harder to fix. Unlacquered brass, like ours, is safe to polish as often as you like, because there is nothing between the cloth and the metal.

How often, and when to leave it

Once every month or two is enough for something handled daily, like a locket worn against the skin, since the oils in your hands do some of the polishing for you. A bell that sits on a shelf will need it less often, perhaps twice a year. There is no rule that says you must do it at all. A light, even patina, the soft brown-gold that brass takes on over a year or two of open air, is not a fault. Plenty of people prefer it to the mirror finish, and it will not progress into anything worse. Polish when you want the shine back. Leave it when you like what age has done. Either way the brass is fine underneath, which is the whole point of buying solid metal instead of plate.