Grinders
by Black Leaf
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The Black Leaf Stacked is a 4-part aluminium herb grinder that grinds, sifts, and collects pollen in one compact 50mm unit. Precision-machined from solid aluminium with diamond-shaped teeth, a nylon friction ring for smooth turning, and a fine mesh screen to separate kief — it does exactly what a grinder should without any fuss.
A 4-part grinder separates your workflow into three distinct chambers: grinding, collection, and kief. The top two sections house the teeth — 50mm worth of diamond-shaped blades that shred herb evenly without pulverising it. The middle chamber catches your ground material on a fine mesh screen, and anything small enough to pass through lands in the bottom compartment as pollen dust. Over a few weeks of regular use, that bottom chamber builds up a tidy collection of concentrated trichomes.
The Black Leaf Stacked stands 40mm tall and 50mm across — small enough to palm, heavy enough to feel like it won't fall apart. The grey aluminium body has a satisfying weight to it, around the heft of a decent zippo lighter. That nylon friction ring between the lid and the grinding chamber is the detail that separates this from cheaper grinders: it keeps the twist smooth even after months of resin build-up. Without it, you'd be wrestling with a seized lid within weeks.
| Specification | Detail |
|---|---|
| Brand | Black Leaf |
| Material | Aluminium (precision-machined) |
| Parts | 4 (lid, grinder, screen chamber, kief catcher) |
| Diameter | 50mm |
| Height | 40mm |
| Tooth Design | Diamond-shaped |
| Friction Ring | Nylon |
| Screen | Fine mesh pollen filter |
| Colour | Grey |
| SKU | HS0337 |
Complete your setup: a small brush tool makes cleaning the screen mesh painless — resin clogs the holes over time, and a stiff bristle brush restores airflow in seconds. If you're using a dry herb vaporiser, a finer grind improves vapour production, so pair this grinder with any of our portable vaporisers for the best results.
We've been selling grinders since the shop opened in 1999, and the single most common mistake we see is people tearing herbs apart by hand. You end up with uneven chunks — some bits combust too fast, others barely heat through. The result is wasted material and a harsher experience. A grinder with diamond-shaped teeth like the Black Leaf Stacked produces a consistent, fluffy texture in about 5-6 twists. That consistency means even heating whether you're rolling or packing a bowl.
The honest limitation here: at 50mm, this isn't a session grinder for groups. If you're grinding for 4 people, you'll need to reload it 2-3 times. For solo or paired use, though, 50mm is the sweet spot — big enough to be practical, small enough to stash in a jacket pocket. Compared to the SLX 2.0 or Santa Cruz Shredder, the Black Leaf Stacked doesn't have a ceramic non-stick coating, so it will need cleaning more often. But it costs a fraction of those grinders, and the machining quality punches well above its price point. The engraved Black Leaf logo on the lid isn't just branding — it's a quality mark from a manufacturer that's been making smoking accessories for years.
One thing worth noting from a practical standpoint: the screen mesh is where most grinder issues show up over time. Trichomes and plant matter gradually clog the holes, reducing kief collection to almost nothing. A quick soak in isopropyl alcohol every few weeks keeps the screen clear. We'd say this is the single best maintenance habit for any 4-part grinder — takes 10 minutes and makes a noticeable difference.
Medium-fine. The diamond-shaped teeth produce a fluffy, even consistency after 5-6 twists — coarser than a coffee grinder but fine enough for vaporisers and rolling. For an extra-fine grind, flip the grinder upside down while twisting to keep herb in contact with the teeth longer.
Yes. The mesh screen filters trichomes into the bottom chamber with normal use. Expect visible kief build-up after about a week of daily grinding. Keeping the screen clean with occasional isopropyl soaks dramatically improves collection over time.
It sits between the lid and the grinding chamber, creating a smooth, low-friction contact point. Without it, aluminium-on-aluminium contact seizes up as resin builds. The nylon ring keeps the twist easy and prevents metal shavings from grinding surfaces rubbing together.
For one or two people, absolutely. You can fit roughly 1-2g of dried herb per load. If you regularly grind for larger groups, a 63mm grinder saves reloading. For personal daily use, 50mm is the size we'd pick — pocketable and practical.
Disassemble all four parts and soak in 90%+ isopropyl alcohol for 20-30 minutes. Use a stiff brush or old toothbrush on the teeth and screen. Rinse with warm water and dry thoroughly. Do this every 2-4 weeks depending on use.
No. Precision-machined aluminium is inert at room temperature and doesn't transfer flavour. The anodised surface of the Black Leaf Stacked resists corrosion and keeps the grinding surfaces clean between uses.
A 2-part grinder is just teeth and a chamber — it grinds but doesn't separate anything. A 4-part like the Black Leaf Stacked adds a mesh screen and kief catcher, so you get ground herb and collected pollen separately. The 4-part design wastes less material overall.
Last updated: April 2026
