A Minimalist Design: Copper Line The copper trend whose effects are seen in different product categories in decoration met in the Copper Line with a minimalist design. The Copper Line series is a chic alternative for those wishing to add color to decoration with simple designs and preserves its traditional stripe with the processing of copper color in the structure of the Alumilite porcelain, produced with Porland’s special recipe, and handicrafts. Instructions for Use: Machine-wash not recommended. Hand-wash recommended. Oven-safe, not microwave-safe.