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08 / CREMAVIO EDITOriginal stylized illustration for Fellow Opus 1; not an exact product photographConcept artwork · not a product photo
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Fellow · Coffee grinder

Opus 1

An all-purpose burr grinder designed for multiple brew styles.

Brew your way

Households using different brewing methods

Multi-methodSeparate grinder
Manufacturer-sourced specsApproachable · United States
GOOD STARTING POINT FORHouseholds using different brewing methods
VERIFY BEFORE BUYINGCheck grind workflow for your beans and recipes
The quick take

A thoughtful fit for the right coffee routine.

A home brewer who wants to explore espresso and additional brewing methods with one grinder.

  • Check brew style
  • Measure counter space
  • Compare adjustment
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We don't sell this item or show real-time stock. Verify the exact model, region, included parts, seller and final price at the retailer.

No checkout, live prices, fabricated star ratings or paid rankings. Purchases take place on third-party sites. Please confirm the exact model before ordering.

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What we can verify

Details, with the source attached.

Checked 2026-10-08
Outer grind adjustment41 marked settings (Opus 1)
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Fine adjustmentAdditional internal adjustment ring
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Espresso guidanceManufacturer provides specific Opus 1 espresso dialing-in guidance
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Detail to double-check

In October 2026, Fellow explicitly distinguishes Opus 1 from Opus 2; these specifications must not be applied to Opus 2.

The Cremavio checklist

How it fits your setup.

Fit is about the specific model, region and accessories — not just the brand.

1

Make sure the retailer lists Opus 1, not Opus 2.

2

Confirm voltage and included dosing parts.

3

Review the manufacturer's espresso adjustment help before buying.

What we do not promise

Similar diameters do not prove that two baskets, portafilters or tampers fit together. Any cross-brand compatibility must be checked for the precise part and machine. An espresso-capable grinder is a workflow pairing, not a physical fit certification.

Before you decide

Trade-offs worth knowing.

The Opus 2 uses a different adjustment system; these facts apply to Opus 1.

Grind guidance is a starting point and varies with beans and basket.

Dosing and static management deserve attention in day-to-day use.

Editorial transparency

Sources & verification

These selected specifications were cross-checked with manufacturer materials for the United States market on 2026-10-08. They are not laboratory tests, and we haven't verified pricing or availability.

Source-backed decisions

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These are workflow ideas, not confirmed physical compatibility claims.

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