What I don't like about Berlin.

This week, my housekeeper, Elvira Rojas, took on the task of cleaning and polishing many of the copper pieces displayed in my studio kitchen. Copper is a soft, malleable and ductile metal with a distinct pinkish-orange color. It's used as a conductor of heat and electricity, as a building material, and as a popular element for cookware and other home decorating items. Over time, copper loses its luster and acquires a tarnish when exposed to air, so it is important to clean it regularly.

Here are some photos, enjoy.