Our Nickel finishes are electroplated over copper and require special care. They can and will tarnish over time when introduced to acidic foods, chemicals, oils, water quality, minerals, and cleaning products, etc. that will remove the nickel plating. Regular cleaning is important to maintain the living finish appearance of your nickel finished product. Use mild dish soap and a clean soft towel. A 50/50 water and white vinegar solution can be used to remove grime and oils. Avoid abrasives and polishes, including bleach based cleaners, such as Scrubbing Bubbles, Dawn Ultra, Lysol Basin & Tub, Soft Scrub and Tile Cleaner. As with all materials, there is nothing maintenance free. Water quality, air temperature, minerals and products can change the color of the finish. We recommend you use a superior quality carnauba paste wax such as Turtle Wax chrome polish for extra shine and protection before initial use and as a regular maintenance. Being a living finish, this will patina over time and develop unique character. This is not a defect and is not covered under warranty. Manufacturer defects are structural and welding issues. Our products are handcrafted by different artisans and will vary in color, texture, dimensions, hammering, and finish that should be expected and not considered defects.