noone is sure really but many like me feel its not worth the risk of possibly vaping copper residue. as well as the high amount of chromium used to plate said copper.
I'm not educated on the copper issue. What is the problem with copper? Water lines are made of copper, tea kettles, copper pots and pans...ect...
I would think the Kanthal wire would be much more concern. It contains aluminum. Aluminum toxicity has been linked to many conditions such as Alzheimer's disease, kidney and liver problems, memory loss, and osteoporosis.
Nichrome wire also contains chromium. Is chromium a problem?
I guess I just can't wrap my head around tank material being more of a hazard than the metal that gets very hot. In my mind the heated metals would have more of a chance contaminating the vape.
Anyone who knows anything please chime in.