Hello !! I am new to this group. I was thinking that it would be a good idea to use castor oil with the cannibas extraction. Do I understand that the best way to make it is to extract the cannabis with high grade grain alcohol, somehow evaporate the alcohol and then mix with oil? I was thinking that in order to evaporate the alcohol it could just be left to the open air, taking longer but if not heated then the THCA does not convert to THC which is psycho-active.Have you got any recommendation about that? have anyone made it with castor oil ? thanks