Lemon and salt
Cut a lemon in half, remove the flesh, and apply salt on the inside. Rub the brass piece with this lemon, reapplying salt as needed. Clean and dry the brass with a soft cloth.
Vinegar paste
For the toughest stains and buildup, make a paste with vinegar, flour, and salt, ensuring that the salt is completely dissolved. Rub the mixture generously onto the brass item and let it sit for about 10-20 minutes. Rinse and wipe with a damp clean cloth.
Lemon paste
These two cleaning agents, when united, create a cleaner that’s tough enough to remove brass buildup with ease. Make a paste of lemon juice and baking soda and apply to brass with a clean cloth. Polish and buff away the grime, and wipe away any residue with a wet cloth. Dry your brass item with a second clean cloth.
Abrasives
You can remove tarnish by sanding it away with abrasives. This reveals a fresh matte finish underneath. Fine steel wool or 3m sanding sponge. Only use steel wool on dry jewelry! Sanding sponges can be used wet or dry.