Grind your herbs in a few twists — 40 mm 4-part aluminum grinder with pollen chamber and fine mesh screen.
Designed in France by BloomLED, indoor growing expert for 10+ years. Anodized aluminum, magnetic lid, spiral-cut teeth.
Ø 40 mm · 4 parts · Aluminum · Pollen screen
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Built for demanding growers and herb enthusiasts, this 40 mm aluminum grinder delivers a fast, even, and silent grind. Four chambers, a pollen catcher, and spiral-cut teeth — every detail is engineered to preserve the aromas and active compounds of your plants.

| — | |
|---|---|
| Diameter | 40 mm |
| Number of parts | 4 |
| Material | Aviation-grade anodized aluminum |
| Closure | Magnetic for perfect alignment |
| Teeth | Spiral-cut, machined from solid |
| Pollen screen | Fine stainless mesh + scraper |
| Use | Aromatic herbs, spices, dried plants |
Spiral-cut teeth machined from a solid block slice your herbs cleanly without crushing them. Essential oils, aromas, and the airy texture ideal for cooking, infusions, or vaporizing all stay intact.
The 4th compartment captures pollen and kief through a fine stainless steel mesh. A scraper is included so every grain is collected — nothing wasted, everything put to use.
Aviation-grade anodized aluminum body: lightweight, corrosion-resistant, and tough. The magnetic closure keeps the parts perfectly aligned at every use, without sticking.
Yes, this diameter is ideal for aromatic herbs (basil, thyme, rosemary, mint, sage), spices, and dried plants from your indoor garden. For larger volumes, go for the 50 mm model.
How do I keep my grinder in top shape?Disassemble the four parts after each use and brush the teeth with a soft brush. A blast of compressed air or an isopropyl alcohol clean every 15-20 uses keeps the mechanism running smoothly.
Pro tip : pair this 40 mm grinder with an airtight storage pouch to preserve your ground herbs and keep their freshness longer.