These copper Handi are meant for serving. The two layers of metal help in preserve the dish hot while sitting on the table.
The copper Handi should be hand washed with mild soap and a soft sponge or wash cloth, drying it immediately. You should not use steel wool or scouring pads as they may damage or scratch the surface. You should also avoid harsh detergent or dishwashers as these may accelerate the oxidation process of the outer copper lining and reduce the life span of the dish.
Over time, the outer copper layer will naturally darken and develop what is called a “patina”. To remove the patina, you can rub the outside with a vinegar-salt solution. To keep the exterior looking new, you can also use a copper polish and follow the manufacturer’s instruction.