Beer Info FAQ

This solution will turn your copper a darker brown, roughly the color of an American penny. Simply shake baking soda in a bottle of hot water one spoonful at a time, until additional baking soda does not dissolve. Spray the copper with the solution. Use a spray bottle to apply the patina onto the surface of the copper.

This change occurs as a result of a chemical reaction between the copper, moisture and oxygen, referred to as oxidation. The only way to prevent a copper roof from turning green is to prevent this reaction from occurring.