Brass is composed of differing amounts of zinc and copper, including "basic" brass, which is made from 33 percent zinc and 67 percent copper.
Though there are chemical brass cleaners on the market, try using some of these natural ingredients to clean brass.
Use This Trick to Remove Tarnish from Copper and Brass: Homemade Copper and Brass Tarnish Remover
If brass has loss its brassy bite, you might need to clean it up. We've got the step-by-step guide to cleaning brass using only two natural ingredients.
How to Clean Walls - Bob Vila
Scrub Mommy and brass cleaner Cleaning Up Vintage Brass
Put that spray paint down! Instead of painting your old hardware, restore it! Use Bar keeper's Friend Cleanser & Polish
How To Clean Brass Using 2 Natural Kitchen Ingredients (lemon, baking soda)
Remodelando la Casa: How to Clean Varnish + Tarnish from Old Brass Hardware
by Rena Klingenberg. Looking for ways to safely remove tarnish and dirt from brass, and bring out the shine (or as much shine as you desire) in this lovely jewelry metal?
SOLID BRASS or BRASS-PLATED? The easiest way to check is by placing a small magnet on the piece you’re not sure about. Magnets will not stick to solid brass, so if the magnet sticks, the piece is brass-plated.