Teeth Geometry and Material Flow
Why tooth count, hole layout, and how they work together matter more than how aggressive your grinder looks
Most grinders are marketed on how their teeth look. How sharp they appear in photos, how aggressive the pattern seems, how many there are. Those are the things that photograph well. They are not the things that determine how a grinder actually performs over time.
What determines long term performance is geometry. How teeth are shaped and spaced, how holes are positioned, and whether those two systems are designed to work together. Get that right and the grinder feels controlled, consistent, and efficient. Get it wrong and you are fighting the grinder on every turn.
Here is how we thought about it when designing OG1.
What grinder teeth are actually doing
Grinder teeth are not blades. They do not slice material cleanly. What they do is apply controlled shear force that fractures material progressively across each rotation.
For that to work well, each tooth needs to contribute a similar amount of work so the force is shared across the whole system rather than concentrated at a few points. When teeth are unevenly spaced or overly aggressive, force becomes irregular. You feel that as catching, stalling, and sudden resistance changes mid-rotation. It also accelerates wear because a few teeth are doing most of the work while the rest coast.
Consistency comes from distribution. That is the design principle the OG1 tooth pattern is built around.
Why we chose controlled spacing over aggressive density
A lot of grinders try to impress with dense, tightly packed teeth. More teeth in the photo looks more impressive. In practice, overcrowded teeth create bunching, clogging, and spiky resistance because material has nowhere to go between engagement points.
OG1 uses deliberately spaced teeth rather than maximum density. Each tooth has room to engage material, fracture it, and release it before the next tooth makes contact. The result is smoother, more continuous resistance throughout the rotation rather than a grabby, burst-by-burst feel.
The uniqueness is not more teeth. It is controlled spacing.
Why tooth count is a balance decision, not a maximum
OG1 uses a 46-tooth pattern. That count is not chosen because 46 is bigger than 40. It is chosen because at that count, the spacing, engagement overlap, and exit timing work together as a system.
More teeth increases the number of engagement events per rotation, which distributes load more evenly and smooths resistance throughout the turn. But too many teeth overcrowds the chamber, restricts material flow, and creates heat and friction from excessive reprocessing.
46 teeth balances frequent controlled shear without overcrowding the grinding zone.
Why the upper and lower teeth are staggered, not mirrored
The lid teeth and the chamber teeth are not identical patterns facing each other. They are offset and staggered so different teeth engage at slightly different moments during each rotation.
This matters because simultaneous engagement across all teeth creates resistance spikes. Every tooth bites at once, the user feels sudden resistance, and the grinder catches. Staggered engagement means one set of teeth is releasing material as another set begins contact. The engagement is more progressive and the resistance stays more even throughout the turn.
In plain terms it feels less like chopping in bursts and more like controlled shearing throughout the rotation.
How material actually moves inside a grinder
This is the part most grinder brands have not thought through carefully, and it is where OG1's design makes the most difference.
When you load herb near the center of the grinder and begin rotating, the material does not stay in the middle. Repeated tooth contact pushes, lifts, fractures, and redirects material with every engagement. The teeth are angled and the chamber is circular, so those repeated contacts tend to move material outward over time. Friction against the rotating lid also drags material in a circular path, and material moving in a circle tends to press outward unless something redirects it inward.
The practical result is that material loaded in the center gradually migrates toward the outer perimeter during grinding. That is not a flaw. It is physics. The question is whether your grinder is designed around it or ignoring it.
Most grinders ignore it. Material reaches the outer wall, there are no teeth there to keep processing it, and it packs into a dead zone against the perimeter. You end up with a mix of fully processed material in the center and underprocessed material packed against the walls. That is where inconsistent grind texture comes from.
How OG1 is designed around outward migration
OG1 solves the outward migration problem in two ways that work together.
First, the lid has a ring of teeth near the outer perimeter. As material migrates outward it does not reach a dead zone. It encounters another set of teeth that keep it engaged and processing. The outer rim teeth exist specifically because material is going to end up there regardless, and we wanted to make sure it kept getting worked rather than sitting against the wall.
Second, the grind chamber has elongated slots and larger openings positioned near the outer perimeter. Once material near the outer edge reaches the target size, it has a direct exit path available. It does not need to travel back to the center to fall through a hole. It exits from wherever it ends up.
That combination — outer teeth to keep perimeter material engaged, outer holes to let it exit when it is ready — is what the system is actually designed around.
Why the mixed hole pattern is not random
Most grinders use a simple repeated circular hole pattern. OG1 uses a combination of round holes and elongated slots in a deliberate distribution across the grinding surface.
Round holes in the inner area regulate output size by requiring material to reach a specific dimension before passing through. Elongated slots near the outer perimeter give fibrous or partially processed material a more forgiving exit path, which reduces clogging and bridging. Larger openings at the outer ring serve material that has migrated outward and needs a nearby exit rather than having to travel back inward.
The mix is not decorative. Each hole type and location serves a specific role in the material flow system.
Why reducing regrinding matters
Regrinding is what happens when material that has already reached the right size cannot exit the grinding chamber and gets dragged around and processed again. It creates unnecessary friction, extra resistance, and inconsistent output because some particles end up finer than intended while others remain too coarse.
The OG1 hole pattern is designed to minimize regrinding by giving processed material more opportunities to exit from wherever it is in the chamber. Material that is done being ground does not need to wait for a single centrally located exit. It can leave from multiple points across the surface once it reaches size.
That is why the grinder can feel efficient rather than labored even with a fully loaded chamber.
Teeth and holes are one system, not two features
This is the most important point on this page.
Teeth and holes must be designed together. Tooth geometry determines how material breaks down. Hole layout determines when and where that material exits. When those two elements are designed as a system around how material actually moves during grinding, the result is consistent, predictable performance from the first turn to the last.
When they are not designed together — when a manufacturer adds teeth for marketing reasons or punches holes without thinking about material flow — you end up with a grinder that looks impressive in photos and performs inconsistently in use.
OG1's tooth count, tooth spacing, stagger pattern, outer rim engagement, and hole layout were designed as a single system. Remove any one element and the system changes. That is what we mean when we say geometry matters more than aggression.
Why aggressive grinders feel great on day one
Highly aggressive tooth designs create immediate, satisfying feedback. They bite quickly, reduce the number of rotations required, and feel powerful from the first use. That feeling is real and we understand why people like it.
The problem is concentrated force accelerates wear at the contact points doing most of the work. As those surfaces degrade, resistance becomes unpredictable. The grinder that felt impressive on day one starts catching and stalling in ways it did not before. The user grips harder, which accelerates the degradation further.
Balanced geometry trades that early aggression for consistent long term performance. The grinder may not feel as immediately dramatic. It should feel meaningfully the same in year two as it did in week one.
Why material amplifies everything
Material properties affect how geometry behaves over time. Softer metals like aluminum deform slightly under load, which can mask poor geometry early. That same deformation increases wear later as the geometry that was already imprecise becomes more imprecise.
304 stainless steel does not flex to compensate. If the geometry is off you feel it immediately. If the geometry is right the material preserves it indefinitely. There is no hiding behind softness.
This is one of the reasons precise geometry matters more in a stainless steel grinder than in an aluminum one. The material demands that the design is correct. It also means that when the design is correct, the material locks that performance in for the long term.
The short version
You load herb near the center. Repeated tooth contact and rotation tend to move it outward over time. Most grinders let it pack against the wall unprocessed. OG1 keeps it engaged with outer rim teeth and gives it an exit path through perimeter holes once it reaches size.
That is the system. Teeth near the center start the breakdown. Staggered teeth continue the shear progressively. Outer rim teeth prevent the dead zone. Mixed round holes and elongated slots give processed material multiple exit paths at the right locations.
Geometry determines how a grinder performs over time. Appearance determines how it sells. We built OG1 around the first one.