I have never used naphtha. When I first saw the video and then looked into naphtha, it looked too scary to me. He also mentioned that 99% isopropyl alcohol would be an acceptable alternative so that is what I chose to use.
Using or not using the term RSO seems to be an ongoing debate on most forums. I never looked at it by your perspective before Gray Wolf. I, like you, would not recommend the use of naphtha in making a concentrate. The only solvent I choose to use for extracting nowadays is 200 proof ethanol or 192 proof polish vodka.
Call it RSO, iso concentrate, ethyl concentrate, what have you. For me the term RSO is more of a process not ingredients. The process of heat decarbing a concentrate utilizing a rice cooker. If it is more accommodating to not use that term, I'm okay with that. Too bad I can't edit my introduction... I will go back and clear up the fact that I do NOT use naphtha.
Either way, I am sticking with my ND Sap
Thanks for the additional book suggestions!! It never hurts to learn more.
GW makes a great point about what RSO denotes versus connotes. I felt compelled to explain this to a cancer patient since they wanted to treat with "RSO". If you have read the studies than you will be a proponent of cannabis oil. However, if they watch/read how it's made than less than ideal outcomes may transpire. Such as them thinking this is too crude and dangerous and stick with pharma poison, or not question the process and procure it from said methods. Therefore, I went into detail describing everything GW did. So yeah, so long as we understand each other call it whatever.
On an equally important side note, I suggest 190 proof Everclear. You can stop the purge/evap when it still contains the solvent, booze. Simple calculations can give % yield for given volume. And I have concluded that last few minutes of purging out all the solvent is the most damaging.