The one potential downside of copper is that it may have reduced efficacy when cleaned multiple times using normal cleaning products.
In a study where copper surfaces were inoculated with bacteria in 1% solutions of albumin, dried, and subsequently cleaned with 70% ethanol or 1% sodium hypochlorite, there was a build-up of residues and a concomitant decrease in killing efficiency (1). On the other hand, it was reported that copper surfaces remained active when soiled (42). Also, it was found that there was no reduction in killing efficiency over 30 cycles of bacterial inoculation, followed by cleaning with a 1% nonionic detergent solution (M. Solioz and C. Molteni, unpublished observations).
Might want to try metal cleaning products like Brasso or Neverdull, instead—with the caveat that you definitely want gloves and possibly want ventilation while using those.
If you find a link let me know and I’ll investigate/probably include it.
The one potential downside of copper is that it may have reduced efficacy when cleaned multiple times using normal cleaning products.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3067274/#r1%20is%201%%20nonionic%20detergent%20solution%20(which%20can%20be%20found%20on%20Amazon
https://drive.google.com/file/d/1-nXiUm-WdhapbqngHkM8tXOovuIZuPoW/view?usp=drivesdk
Might want to try metal cleaning products like Brasso or Neverdull, instead—with the caveat that you definitely want gloves and possibly want ventilation while using those.