I actually made this powder last night on accident with no special anything. No purge even. I was doing my hit water boil off of my tane and out of nowhere it looked like a long stream kf gasoline on the grlund when you light it. In a fast poor it went from looking like it was gonna be crumble and then it turned to dust. It was pretty cool amd its super potent and flavorful. But I wasnt prepared for it. All 4 of my runs did it the same way .But I dont use a blasting tube. I freezer wverything including mason jars and I do a butane soak in the freezer. I pyncture holes in the lid of the had and let it sit for 10 minted no agitation at all then pour through silk screen into silicone pan .Floating in water. Never once did my dab do this. Smokes the same. Works great out of a rig amd great out of my Yocan Loaded.check out river rocks rock budder (their website, facebook, google it im sure there are reviews)
getting the powder/super dust is a somewhat long process.
I know they blast their oil then vac purge with very very very low heat FOR DAYS. thats how they get their crazy consistensy like that, but then again they won multiple awards for their BHO, so i'd look a little more into that!