How to store and care for your brass earrings
Brass is an alloy of copper and zinc and will naturally tarnish when exposed to oxygen. Tarnishing is actually a protective layer for the brass, but if you want to get the shine of the new brass it's pretty easy to do.
Polish using a jewellery polishing cloth. Or you can take it one step further, take about 2 tablespoons of baking soda and a few drops of lemon juice, mix until you have a nice paste. Take an old toothbrush and apply the paste to your piece and scrub. Let it sit in the paste for about 30 minutes and then rinse it with water and dry it thoroughly.
Store earrings either in an airtight container or zip lock bag, this will help to avoid tarnishing over time. It's best not to let the brass touch any silver earrings you may have.
Oils from your skin and the oxygen in the air are what accelerate tarnishing. If you want to slow the tarnish process, wipe the pieces with a soft cotton rag after wearing.