I think it matters, but there is nothing I can do about it, at this point. If I start to see something, I will quit using it. This was supposed to be stainless steel. If it is not stainless steel, they have used false advertising as far as I am concerned. I am very perturbed about this whole thing. If I find that they flat out lied, they will lose my future business on tanks. Stainless steel is not that expensive. Those tanks are not cheap. They risked losing a huge customer base, if they have not been honest. I am new to vaping, and I feel like I have been burned on it. I am so thankful I didn't get the other mini tanks I had planned on ordering.
So can we assume that as long as the coating is intact, it doesnt matter if it is brass or steel?