Specifications

Burr Type100mm flat steel burrs

MotorLow-RPM DC motor

AdjustmentStepless micrometric

Dosing MethodSingle dose with bellows

Housing MaterialStainless steel and aluminum

Home Burr Grinder

Option-O p100

by Option-O

The Option-O p100 is a serious single-dosing home grinder built around 100mm flat burrs, delivering excellent grind uniformity and minimal retention for espresso and filter brewing alike.

4.6~~rating~~

BurrBench verdictScored 4.6/5 across consistency, retention, value and build.

Option-O p100

by Option-O

Near-zero retention
Café-level consistency
Stepless precision adjustment

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Independently bought & tested · Backed by BurrBench bench standards

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Key features

01100mm flat steel burrs for precise, consistent particle size

02Single-dosing bellows design to minimize retention

03Stepless micrometric adjustment collar

04High-torque, low-RPM DC motor for reduced heat and static

05Magnetic catch cup and modular funnel for easy workflow

06Compact stainless steel and aluminum housing

Our full review

The Option-O p100 is a single-dose home burr grinder built for coffee enthusiasts who want café-level consistency without the bulk of a commercial machine. At its core sits a 100mm flat burr set, larger than what most home grinders offer, which allows the blades to spin slower while still producing a fast, even grind across the full spectrum from fine espresso to coarse French press. The reduced RPM keeps heat transfer to a minimum, protecting the delicate aromatic compounds in the beans and translating into a cup that tastes cleaner and more nuanced than what smaller-burr grinders typically deliver.

Design-wise, the p100 follows Option-O's minimalist, single-dose philosophy: there's no bean hopper to store beans for days, and no chute to trap stale grounds between sessions. Instead, you weigh out just the amount you need before each brew, drop it into the throat, and grind directly into your portafilter or brew vessel. This approach virtually eliminates retention and cross-contamination between different beans, which matters if you rotate through multiple origins or roast profiles during the week.

The stepless adjustment collar lets you dial in grind size with fine resolution, so espresso lovers chasing a specific extraction can make micro-adjustments rather than being locked into preset click stops. Built with a compact footprint and a solid aluminum housing, the p100 is engineered to sit comfortably on a kitchen counter without dominating the space, while still feeling substantial and well-machined in daily use. The motor is quiet enough for early mornings, and the grind chamber is easy to access for quick cleaning, which matters for anyone serious about avoiding stale oil buildup on the burrs.

Whether you're pulling shots on a home espresso machine or brewing pour-over, the Option-O p100 aims to bridge the gap between prosumer performance and the practicality of everyday home use, making it a grinder suited for people who care about precision but don't want the complexity of commercial-grade equipment.