We are using bho made from dry trim, winterized in etoh:
After etoh recovery, we do a decarb/devol in the roto (90+c) 50 torr.
Using a 2" pope, we do a first pass at around 105/50c (evaporator/internal condenser) and run it around 1 torr. ~350ml/hr @ 35%
My second pass parameters are as follows:
Evap 148-155c
Int cond 98c
External condenser 0-10c
35% speed
~250ml/hr
Vac usually settles out at 50-100mt
We’re getting 96-97% product. no swirls, electric yellow color.
I’ve had to adjust evaporator temps based on what I was running, however. This is just the process we use on our in house material of known quality. This doesn’t work for all material.
The pic doesn’t do it justice, always looks darker than it does in person.