The first tek I used was
Gir's pictorial which is a spin of
Noman's tek.
There is no such thing as a solventless extraction but as you stated, the solvent traces can be removed.
Gir's tek uses naptha which you can freeze precip or evaporate fully. If you evaporate it fully, you will usually be left with some extra oils that will take a little bit longer to dry up but are still plenty active.
If you are looking for pure white spice, freeze precip is the way to go.
Once you've gotten your spice, you can redissolve it in an alcohol and that will help remove any naptha traces and evaporate clean.
There is tons of info in the
wiki and around the forums, so it's best to do as much research as possible to help you understand all of the different concepts.
Also, there are
several non-toxic, eco friendly teks available too that use all natural ingredients instead of petrochemicals.
Good luck and welcome to the Nexus!
Convert a melodic element into a rhythmic element...