Over time, copper sinks, pots and pans may lose their luminance ... cover the copper with a thin layer of ketchup. Rub gently to restore shine. Rinse thoroughly, and dry completely.

Below my kitchen sink is a copper pipe that comes out of the wall ... and if that isn’t in your budget, then you get to repair the leak. There are several companies making copper adhesive ...

Safely restore tarnished copper surfaces with these ... Rinse the jewelry under running water and buff dry to polish. Before cleaning a copper sink, consult the manufacturer's manual.