Dry sift
Dry sift is trichome separation by sieving dried plant material — the historical method behind Moroccan and Afghan hash, refined today with meshes calibrated in microns.
The principle has not changed in a century: dry, cold material, a screen, a steady gesture. Brittle trichomes break off and pass through the mesh; the collected powder (kif in Morocco) is then pressed into slabs, hot or cold. All the modern sophistication lies in calibration — screens graded from 220u to 45u — and in temperature control, cold making trichomes more brittle and the sort cleaner.
Its contemporary variants are called static sift (with complementary electrostatic sorting) and "00"/triplo filtrato (successive screenings). Against ice-water methods, dry sift keeps two advantages: no contact with water, hence an intact aromatic profile, and a simplicity that suits small artisanal batches.
Two of our resins descend from this lineage: the 90µ CBG Hash (finely sieved, CBG measured at 19.3%) and the Afghan (cold separation and hand pressing, CBG at 18.5%).
Further reading.
- Which one to pick
- The lab's hash comparison