That's not going to be debated here... anodized aluminum and juice is a polarizing subject. We have SS PVs available if you're concerned about Aluminum in contact with juice...
To my knowledge, the Original 5 have not had oxidation issues... and I have the prototype which has never had issues... your juice and experience may vary.
There are LOTS of Aluminum tanks in the world... Most are anodized, and like I said, this isn't the place to decide on the safety of this material and I'm not making any material safety statements regarding it's use.
I will say Anodized Aluminum is safer than Low Grade Stainless steel which can contain lead... and people have gone BONKERS for many Tanks and PVs using the LOWEST grade of Stainless available.
But we're not going to go there either.
I know for sure you already know this, but for those who don't...juice is typically basic, oxidation typically occurs under acidic conditions (or neutral with an ion present). Liquid with a pH over 11 can actually eat away the anodize, but if you're vaping something that caustic, you've got worse problems.
