Gentle soap and water will maintain the sink. Because the patina
finish is somewhat fragile, no abrasives or harsh chemicals should
be used. The nature of copper allows the sink to scratch and discolor,
however this living finish beautifies the product and adds to the
uniqueness. Your sink will arrive waxed with the high grade furniture
paste wax. This wax will wear off over time and a new coat of a
paste wax should be applied. This will help lessen the patina ageing
process. Most any brand of furniture, floor or car wax is acceptable.
For light areas of you sink, dark brown KIWI brand shoe polish will
also help restore the sink's finish.