I would think that the expense in time and effort would outweigh the minuscule savings in wire, just rip em out and
throw in a new coil, just my
(Yes, I have built and vaped single and parallel Claptons, I know that it's not as easy as
throwing together a micro coil, but it just doesn't seem worth it to me)
Edit: After reading your question again I saw that you may be asking about cleaning them before installing to get off any machining oil and such. I just wipe down my wire before making them and then dry burn them once installed.
BTW, link is not working.