Fellow Opus Coffee Grinder Overview

The Fellow Opus Coffee Grinder is designed as a versatile all-in-one grinder for home users who want a single machine capable of handling espresso, pour-over, drip coffee, French press, and cold brew. Positioned as a multi-purpose conical burr grinder, it combines broad grind range, precision adjustment, and workflow-focused features in a compact footprint.

With growing demand for home coffee grinders that can support multiple brewing methods, the Fellow Opus has gained attention for offering both espresso capability and strong filter coffee performance in one machine. Its combination of 41+ grind settings, micro-adjustments, 40mm conical burrs, low retention design, and anti-static technology makes it a competitive option in its category.

What’s included in the box?
The grinder comes with the unit, catch cup, dosing insert for portafilters, and user guides to help you get started quickly.

What Is the Fellow Opus Coffee Grinder?

The Fellow Opus is a single-dose conical burr coffee grinder designed for home brewing across a wide range of grind sizes. Unlike grinders optimized exclusively for espresso or brewed coffee, this conical burr coffee grinder is intended to cover multiple brewing methods with one machine.

It supports:

• Espresso
• Pour-over
• Drip coffee
• French press
• Cold brew

Its adjustment system combines stepped macro settings with internal micro-adjustments, allowing users to move between broad grind changes and fine-tuning for more precise extraction. Unlike brew-only grinders such as the Fellow Ode Gen 2, the Opus is built to cover both espresso and filter coffee.

Key Features of the Fellow Opus Grinder

41+ Grind Settings With Micro Adjustments

This single dose coffee grinder offers 41 main grind settings, along with additional micro-adjustments for finer control. This broad adjustment range allows the grinder to support everything from fine espresso grinding to coarse cold brew settings.

This feature is especially important for users seeking a coffee grinder with precise grind adjustment for multiple brew methods. Additional guidance on espresso calibration is covered in How to Dial In Espresso Grind Size

40mm Conical Burrs

The grinder uses 40mm stainless steel conical burrs designed to deliver consistent particle distribution and improved extraction performance.

Benefits include:

• Uniform grind consistency
• Improved flavor clarity
• Better extraction control
• Reduced fines compared to lower-quality burr sets

Low Retention Single-Dose Design

The Opus is designed as a low-retention single-dose grinder, reducing the amount of coffee grounds left inside the grinder after use.

This supports:

• Improved freshness
• Less coffee waste
• Easier bean switching
• More accurate dosing

Users researching single-dose grinders may also compare this with the DF64 Gen 2.

Anti-Static Technology

Anti-static features help reduce coffee grounds clinging to surfaces or spraying during dosing.

This improves cleanliness and daily workflow.

Timed Grinding With Auto Stop

Timed grinding options help provide repeatable dosing and convenience.

Available grinding intervals include:

• 30 seconds
• 60 seconds
• 90 seconds
• Up to 2 minutes

Compact Design and Portafilter Compatibility

The grinder includes a magnetic catch cup and compatibility with 54mm and 58mm portafilters, supporting both convenience and espresso workflow.

Its compact design also makes it suitable for smaller kitchen setups.

Fellow Opus Grind Performance

Espresso Performance

The Fellow Opus is capable of grinding for espresso and provides sufficient precision for many home espresso setups.

Its micro-adjustment system supports dialing in espresso shots, while the burr set provides respectable grind consistency for its category.

Strengths include:

• Fine grind capability
• Good extraction control
• Usable espresso adjustment range
• Compatibility with common home espresso machines

Limitations include:

• Less precision than premium dedicated espresso grinders
• Some learning curve during dialing in
• Stepped rather than fully stepless adjustment

Overall, espresso performance is strong for a multi-purpose home grinder. Users comparing dedicated espresso-focused alternatives may also review the Baratza Encore ESP.

Pour-Over and Filter Coffee Performance

Filter coffee performance is one of the grinder’s strongest areas.

It performs well for:

• V60
• Chemex
• Kalita Wave
• Drip brewers
• AeroPress

Grind consistency is generally strong, supporting balanced extraction and clean cup quality. For filter-focused alternatives, see Best Grinders for Pour Over Coffee.

Workflow and Daily Use

Workflow features are a major strength of the Opus.

Low retention, anti-static technology, and timed grinding all contribute to cleaner, more predictable daily operation.

For users who single dose or switch between beans frequently, these features add practical value.

Specifications