Copper is widely recognised for its bacteria killing properties but if you were ever considering just how effective copper is when it comes to killing bacteria, here is the information you have been looking for.
MRSA - Copper alloys kill more than 99.9% of MRSA within two hours - Stainless steel did not exhibit any antimicrobial efficacy.
Ecoli - Over 99.9% of E. coli microbes are killed after just 1–2 hours on copper. On stainless steel surfaces, the microbes can survive for weeks.
Clostridium difficile - On Copper, near total kill was observed after 3 hours. On stainless steel, no reductions in viable organisms were observed after 72 hours (3 days) of exposure and no significant reduction was observed within 168 hours (1 week).
Influenza - after incubation for one hour on copper, active influenza A virus particles were reduced by 75%. After six hours, the particles were reduced on copper by 99.999%. Influenza A virus was found to survive in large numbers on stainless steel.
Armed with this knowledge, which material would you prefer for your hot water cylinder?
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