Sorry, a bit late to the conversation. I haven’t used Kanthal in a long while, so, I’m not sure how long Kanthal Aliens last. I had a problem with SS316L turning reddish/copper after a very short time...looked very similar to your pic. I’ve yet have any of my N80 Aliens turn red or brown, but when I rewick, I check for and fix hot spots that may have come up and if I’m not careful, I burn them for too long too hot (drawback of using a mech and not being able to control the power) and they get very dull gray and take forever to glow, so, I toss them. I’ve had the set I’m using now for about a week and that’s the longest I’ve kept a coil going in a looooong time.
Did you use a different juice by chance that may have been a bit more acidic or sugary and accelerated the corrosion of the metal? Or maybe dry fired too hot or even possibly auto fired without your knowledge and it cut off? Otherwise, I’m clueless, cuz I’m addicted to my N80.
These are my SS316L Aliens after they discolored...of course they’re wet and look different, but dry, they looked just like yours.
You're not drinking water are you?! You realize that stuff is found in antifreeze!?!