What Can You Do with That Leftover Weed at the Bottom of Your Bag or Container? – A Guide to Using Kief and Shake By JasonFebruary 19, 2024aggregated So what can you do with kief and shake? What To Do With Kief. Kief can be saved and in fact, some cannabis users even harvest them on purpose to consume the potent trichomes. You can extract them from weed flower using the following methods..