Strain very fine pollen with a mesh sieve and a pollen scraper. GET A BETTER GRIND: Sharp, curved teeth shred and loosen your herbs with ease, while the precisely-sized hole pattern ensures a consistent, flawless grind. We are sure you will enjoy using this grinder Precision Zinc Alloy: Scratch-resistant, hardened zinc alloy ensures long-lasting durability, and non-stick surface ensures smooth grinding and prevents metal-to-metal contact and residue build-up. MAXIMUM POLLEN COLLECTION: Our mini vanilla grinder features a 4-layer and 3-chamber design to screen pollen for the best capture, and our round base chamber ensures you get all your pollen. With this herbal grinder, you won't be left with pollen. Magnetic Lid and Threaded Chamber: Magnets in the lid quickly load and hold your herbs while grinding; while a threaded lower chamber prevents spills and keeps your ground herbs ready.