First: what type of
coils are they? the kanthal or NI or TI.
If kanthal, you should be able to no problem... look for it on Youtube, some people make instructional videos about it.
If NI or TI.. nope.. you cannot dry burn those metals without risk of causing them to oxidize and breathing that is considered really (and I mean REALLY) bad for your health.
But, the Vaporasso coil cartridges are amazingly well designed, and are very easy to rebuild... you'd just need proper cotton, wire and a few basic tools and. It's cost you penny per coils and you can rebuild them many many times (I have ONE that broke on me so far and was my own fault, just too rough with it)
I've been using them as my go-to coil cartridges for my
tanks (those coils are cross compatible with a LOT of
tanks) and my rebuilds are actually better than the ceramic original builds.
The trouble with the ceramic is that some liquids are too thick to wick right, and LOTS of store bought liquids are so full of sweeteners that the coils and ceramic will gum up fairly fast. I've has some new ones that lasted me a good 2-3 weeks, others 2-3 days.