There used to be a fellow here on IC years ago (MRIKO) who was (I think) originally from some place near the general area where the Hindu Kush run through several countries.
We discussed the Pakistani process, and he indicated they buried their trichs/glands in the ground, rolled up inside 'finished' (tanned) goat skins, for six months or more, in an aging/curing process.
I tried to locate him here for other reasons related to finding another older member (Naga_Sadu), several years ago, and couldn't.
I use a custom-made automated tumbler wheel inside an epoxy-enamel-sprayed wooden box, with a 25 rpm gear-reduction-drive 115 volt AC motor on a light switch, with what we refer to here as #100 (stainless steel) screen (in a sq. inch, 100 'holes' in the weave in each direction, length and width, within that sq. inch). It's my understanding that a # 120 screen would slightly reduce product, but increase quality.
No pressure is applied to the sieving, other than gravity from matter tumbling inside the wheel. And only higher-end trim is tumbled, springy dry, no pulverizing, and no buds.
Returns have varied from 5% to over 13% of weight of veg matter.
If oily enough, hand-pressing without heating is done. If standard process is used, then heating the steel mold to 170 f., then taking custom-sized-and-taped unscented oven roasting bags with glands, placed in the mold, and placed in a press driven by an 8-ton or 2-ton jack (depending on which one is where at that time).
Edit: I give the tumbler wheel a 99% lab-grade isopropyl alc. bath, 2-3 times before each use, employing a soft-bristled tooth brush each time to -gently- brush the inside of the wheel with each bathing in the iso.
Last edited by moose eater; 11-11-2017 at 11:12 PM..