Let me explain a little further here. Around two years ago I had just learned about winterization and how it’s pretty much lipid filtering to make a clearer concentrate. So I also knew about rso and so I decided to try something for the sake of seeing what would happen. I didn’t at the time have a closed loop I used a closed column.
So my process was blast an ounce into a round bottom flask and then wait till the butane was gone and vacuumed it out in the vac oven for 5 mins no heat. Then I added ugh proof food grade alcohol and washed that flask. While all that was going on there is an 8th of whole nug in the freezer in a round bottom flask cause at the time I learned how cold temps strip terps and had no access to dry ice. After the wash to the vacuumed concentrate I pour that over the frozen nugs and do a wash to the nugs with non-filtered pre-winterized alcohol mixture. I do a traditional filtration with a regular funnel into a glass beaker then vacuum filter with a buchner funnel. At the time I tractional distilled it and then poured it onto a pyrex dish and let it evaporate.
Two days later it was the most intense oil I ever dabbed in my life and only what i can describe as if BHO fucked EHO.
I recreated the experiment a few times but this year I did it differently and I feel more effectively. I used my cls and did a pour up and purged it for an hour without heat. Took it and then washed it I washed it over and 8th of frozen nugs but added dry ice and let it strip more out. Did a regular funnel then a vacuum filtration the.n rotovapped it and then let it sit in my heated vacuum chamber for 87°F for a few days.
It’s really great and i learned you can mix and match terps. Like the weed you used to make the bho you wash those terps can be over powered by the weed your washing.
I want to patent the idea.