At work I normally run 0.35 wire but switched over to 3/64" to try it out
used about a quarter roll, then removed the roll, bagged it and put it back in the box. A month or so later, the guys who run the 3/64 got to my old roll and from what I heard it ran dirty. Visually the wire looked fine

my question

Did it absorb hydrogen?
My work has a powdercoating setup in the back, would running the roll through the oven bake out the contaminants?