Steps for cleaning bronze jewelry:
First, wipe the bronze jewelry with a polishing cloth.
Second, place few drops of mild detergent onto the piece.
Third, rub the detergent all over your bronze jewelry.
Fourth, rinse the bronze jewelry under running water.
Fifth, dry it with a polishing cloth.
Your bronze jewelry should regain its luster again if you have followed our steps. This cleaning method should not harm your jewelry. You can introduce this method to your friends if you think it is helpful. Your bronze jewelry will keep its luster under your good care. Hope this can help you.