Final stage of evacuation, what’s really going on here.

Bernie Williams submitted

Given the hydroscopic nature of POE oil, I am concerned when performing a “normal” evacuation, that moisture molcules would be left within the oil. Recently I read an article that said oil boiled (resulting in the vaporization of oil) at a low (-500) micron level. Is this claim a substantiated fact and if so is documentation pertaining to the claim available. I would enjoy reading the results of any testing done to reach this conclusion, if true.