^ yup...
It's just a super dry form of BHO....
Crumble state is not difficult to replicate, but takes a bit of practice.
You don't necessarily need a vac...
However if this is for medical treatment.
Vac purging is pretty damn necessary.
Do not exceed temps of 120-130° max.
Whip the oil, spreading it evenly across the Rex..let it sit, repeat whip process until dry.
You could also just let the oil sit at about 120° for a couple days, cover the dish with cheesecloth to prevent dust and other foreign debris out.
Let a fan gently blow air across the surface the entire time.
You should then be able to take a dab tool and crumble it..
It will look like crumbly cookie dough.
Hope that helps.
But yes, crumble is just another word that describes the multitude of monikers BHO has.