I make terrible distillate....why?

[Soxhlet]

Thats oxidation your seeing or “the red ring of death”. store your jar under vacuum or inert gas.

Red Ring of Death

I’ve seen a couple posts on here about this but haven’t seen anything definitive so I wanted to bring it up again. Does anyone know how to get rid of this red ring that forms on the tops of jars/carts within a couple days to a couple weeks of distillation? I have implemented vacuum sealing our jars immediately after distillation and putting rubber stoppers on the top and bottom of the cartridges and this seems to delay the red coloration but not stop it. I’d like to come up with a permanent solu…