Then, a rotating dust brush attachment is used to vacuum the contaminants, together with trichome stalks and other plant particulates, in the filter screen, leaving the cleaned sift from the jar. Dry Sift and Bubble Hash are equally solventless cannabis concentrates. They're made by separating trichomes in the cannabis flower. https://frozensifthash81357.wizzardsblog.com/37764498/new-step-by-step-map-for-dry-sift-vs-ice-o-lator