Copper kitchen/bathroom sinks

[BearSchlong 8248]

for those of you with copper sinks in your houses, do you keep them polished like a bright, new, shiny penny? Or do you let them age?
 
My new house has a hammered copper 50/50 sink in the kitchen, and a very ornate hammered copper with what can best be described as a vine with leaves pattern in my bathroom.
 
on days when my wife or housekeeper polishes them with barkeepers Friend, they look really awesome for about one hour.
 
Then the oxidation begins, and after a day or two, they look dark and splotchy.
 
i’m assuming that if I just let them go wild and use dish soap and warm water to clean off food residue then eventually it will take on the patina of an old penny.
 
Is anybody here in the same boat?

[Bevo 13903]

I'm going to do it but haven't yet. Call Sinkology or the manufacturer - I'd like to know their answer. With that said, copper wax seems to be the answer. From Amazon:

SinkSense Deluxe Copper Care IQ Kit, 8.00" x 2.00"

Brand     Sinkology
Towel form type     Cleaning Cloth
Age Range (Description)     Adult
Material     Microfiber
Product Dimensions     8"L x 2"W
About this item

    80% Polyester, 20% Nylon
    Dimensions: 7" x 6" x 3"
    Kit includes: Copper wax, microfiber polish cloth, Breeze Non-Scratch Scrubber
    Easy-spray solution with neutral scent (16 oz. bottle)
    Helps water to bead up by forming a thin shell over the surface of your sink for protection against water and surface stains
    Microfiber polish cloth is machine washable and reusable
    Scrubber is made from Silicon and will not produce bacterial odors
    Recommended Products: Sinkology Copper Sinks and Tubs

 

[Bevo 13903]

https://www.sinkology.com/blog/guide-copper-sink-cleaning-care/