The cbd will crystallize,
The rest of the extract will remain a viscous liquid oil
You will need to dissolve the material in an alkane
Heptane is a good choice as it has a high boiling point so it will reach super-saturation slowly
Measure the materials volume
Measure twice that volume of heptane example: 1000ml distilled cannabinoid extract
2000ml heptane
Bring the material to 94c
Bring heptane to 94c
Add heptane to extract under heavy stirring
Mix thoroughly
Let solution cool to 30c, slowly, do not accelerate cooling process
Drop temperature of solution to 25c, slowly-
apply strong mixing
Drop temperature to 20c, slowly
Apply strong mixing
Drop temperature to 15c slowly
Apply strong mixing
Drop temperature to 10c slowly
Apply strong mixing
Raise temperature to 15c, slowly
Apply strong mixing
Drop temperature to 10c, slowly
Apply strong mixing
Raise temperature to 15c, slowly
Apply strong mixing
Drop temperature to 10c, slowly
Apply strong mixing
Drop temperature to 5c slowly
Apply strong mixing
Raise temperature to 10c slowly
Apply strong mixing
Drop temperature to 5c slowly
Apply strong mixing
Raise temperature to 10c slowly
Apply strong mixing
Drop temperature to 5c slowly
Apply strong mixing
Raise temperature to 10c slowly
Apply strong mixing
Drop temperature to 5c slowly
Apply strong mixing
Raise temperature to 10c slowly
Apply strong mixing
Drop temperature to 5c slowly
Apply strong mixing
If you extract has fats or waxes due to insufficient winterization or lack of water-washing, they will begin to fall out of solution near 0c and solidify
This will ruin your yield, by coating the crystals in a shell of wax and inhibiting further crystal lattice formation
If your extract was de-waxed and washed with water, you may proceed to drop temperature to 0c and mix again, and cycle in this fashion down to -5c and then down to-10c
If not, do not go lower than 5c
Continue cycling temperature up and down in this fashion until all no more crystals form.
There is no need to drop temperature past -10c