Cleaning brass hardware with vinegar is a simple and effective method. According to Mujtaba Khan, creator of the site Max ...

The same is true if you use ammonia, as it is similarly corrosive and may leave behind blue stains or dissolve the lacquered coating. When cleaning brass, also avoid steel wool and abrasive ...

Some of the best ways to clean brass hardware include using natural products such as lemon, baking soda, and vinegar. However, if lacquered, avoid anything other than a bit of soap and water.

While you might find recommendations for using white vinegar and bleach as cleaning solutions for silicone sealants that are stained with mould, these products could potentially harm the sealant.