Yeah it's called a dry tek.
Making it in a lidded jar in a well ventilated area would be better to avoid naphtha vapours, also pouring the naptha directly into the freeze/precip dish risks contamination with the base and plant material.
For more details check out the wiki dry teks
wiki.dmt-nexus.me
And this one as well
OK guys, this is a work in progress, and will be updated as I experiment more.... pics will be coming when I do my next extraction (which probably won't be for a while). But, here it is: Microwave Assisted Drytek for Acacia confusa bark. With mimosa being increasingly hard to come across...
forum.dmt-nexus.me