Grinders
by After Grow
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The Metal Grinder Thorinder is a four-piece herb grinder made from anodised aluminium and stainless steel, designed to turn your herb into a consistently fine grind with minimal effort. It ships in a presentation casket with a cleaning tool included — the kind of packaging that makes you wonder if you've accidentally bought jewellery. The transparent top lets you watch the grinding happen in real time, so you know exactly when your herb hits the consistency you want. Available in blue, green, orange, and silver, with a compact 50mm diameter that fits comfortably in your palm or pocket.
| Variant | SKU |
|---|---|
| Green | HS0189 |
| Orange | HS0186 |
| Silver | HS0187 |
| Blue | HS0188 |
All four colours use the same anodised aluminium finish. The colour is baked into the metal, not painted on, so it won't chip or flake after a few months of use. Silver is the most understated; orange is the one that gets comments.
| Spec | Value |
|---|---|
| Diameter | 50mm |
| Pieces | 4 (lid, grinder, screen, kief catcher) |
| Material — Body | Anodised aluminium |
| Material — Teeth | Stainless steel |
| Lid | Transparent top window |
| Tooth Design | Teeth-Tec combination shape |
| Included Accessories | Cleaning tool, presentation casket |
| Available Colours | Blue, Green, Orange, Silver |
| Approximate Herb Capacity | A few grams — enough for daily use without constant reloading |
Complete your setup: A grinder this good deserves paper to match. Pair the Thorinder with RAW Classic King Size Slim papers or a decent glass pipe for the full ritual. If you're after storage, a UV-blocking stash jar keeps your freshly ground herb from drying out between sessions.
We've handled a lot of grinders since 1999 — acrylic ones that crack after a month, wooden ones that jam, cheap metal ones where the threading cross-locks and you're left wrestling with a stuck cylinder like you're trying to open a jar of pickles. The Thorinder doesn't do any of that. The threading is smooth and precise. You can feel the weight of it the moment you pick it up — it's dense, solid, and the anodised finish has a slight texture that stops it slipping in your hands. That tactile quality is the first thing you notice.
The teeth are where the real engineering sits. The Thorinder uses a proprietary Teeth-Tec tooth shape combination — a mix of diamond-shaped and shark-fin teeth positioned to shred herb rather than compress it. Most budget grinders mash your herb into a clump. This one produces an even, fluffy grind that burns or vaporises consistently. The stainless steel teeth hold their edge, too. After months of daily use, they still bite through dried herb without the dull resistance you get from softer aluminium teeth.
The transparent lid is genuinely useful, not just a gimmick. You can see when your herb has reached the consistency you want without unscrewing the top every few seconds. It saves time and stops you over-grinding, which matters if you prefer a slightly coarser texture for rolling or a finer one for vaporising.
At 50mm, this is a compact grinder. If you're grinding for a group or prepping large amounts, you'll be reloading a few times. It holds a few grams comfortably, which is fine for personal daily use, but if you regularly grind 5g+ in one sitting, you'd want to look at a larger grinder — the Thorinder also comes in a 62mm version for exactly that reason.
The kief screen is fine-mesh, which means it collects slowly. That's actually a good sign — coarse screens let plant material through and you end up with green powder instead of proper kief. But if you're expecting a full kief chamber after a week, adjust your expectations. Give it a month of regular use. The cleaning tool helps keep the screen clear, which speeds collection up noticeably.
One more thing: the casket is a nice touch for gifting, but it's not exactly pocket-sized storage. You'll likely ditch it after the first week and just carry the grinder loose. Not a flaw — just managing expectations.
We get asked about grinder materials at least a few times a week. Acrylic grinders are cheap, and they work — for about two months. Then the teeth dull, the plastic cracks, and tiny shards end up in your herb. Not ideal. Wooden grinders look beautiful but they absorb moisture and resin, which means they jam, they're nearly impossible to clean properly, and they rarely have a kief screen.
Metal aluminium grinders are the standard for a reason. They're durable, easy to clean, and the threading holds up over years of daily use. The Thorinder takes that a step further with the stainless steel teeth and anodised body — the anodising process creates a hard oxide layer on the aluminium surface that resists scratching and corrosion. It's the same treatment used on aerospace components. Your grinder won't see those conditions, but the point is: it's built to last far longer than you'd expect from a 50mm herb grinder.
The body is anodised aluminium and the teeth are stainless steel. Anodising creates a hard oxide layer on the aluminium that resists scratches and corrosion. The combination gives you a lightweight grinder with teeth that stay sharp through years of use.
Four. The top grinding chamber, a collection chamber for your ground herb, a fine mesh screen, and a bottom kief catcher. The four-piece design means you get usable ground herb and collect kief separately — two-piece grinders can't do that.
Yes. The transparent lid lets you watch the grinding process in real time. You can check consistency without unscrewing anything, which means less mess and more control over how fine or coarse your grind ends up.
Use the included cleaning tool to brush the mesh screen after every few sessions. For a deep clean, disassemble all four pieces, soak in isopropyl alcohol for 20 minutes, rinse with warm water, and dry completely before reassembling. Don't skip the drying — moisture trapped in the threading causes stiffness.
For personal use, absolutely. It holds a few grams per load, which covers most daily sessions without reloading. If you're regularly grinding larger quantities for groups or batch preparation, the 62mm Thorinder is the better pick.
Teeth-Tec uses a combination of diamond-shaped and shark-fin tooth profiles arranged to shred herb rather than compress it. Standard grinders often have uniform peg-shaped teeth that mash material into clumps. The Thorinder's design produces a fluffier, more even grind — noticeable difference if you vaporise.
No. The colour is part of the anodising process — it's embedded in the aluminium's oxide layer, not painted or coated on top. It won't chip, peel, or flake. After years of use, you might see minor surface wear on the edges, but the colour itself stays.
Last updated: April 2026
