Fit and setup
Check this first
Check the stored size, power needs, space to use it, and daily routine.
U.S. product
- weigh beans for one drink
- espresso and filter coffee
- cup-based dosing
Power and circuit
Direct-US unit, 120V
Regional electrical wording comes from published details; confirm the outlet and branch circuit before purchase.
Daily routine
Weigh the beans for each drink. Turn the grind control smoothly to change the grind size.
Published details suggest this daily-use routine. The exact handle shape can affect how grounds transfer.
Portafilter fit
54mm and 58mm
A portafilter is the handled tool that holds the filter basket. Supported sizes do not guarantee fit for every handle shape.
Sources disagreeStored size
Published sizes differ
- 206 × 130 × 267 mm L × W × H Fellow product page
- 266.5 × 130 × 202 mm L × W × H Fellow safety manual
These are the numbers each source publishes. They disagree, so we do not use them for fit checks or size rankings. Measure the exact unit first.
Sources disagreeSpace needed to use it
We could not confirm this
Leave room for the working parts until we confirm a measurement with the portafilter in place.
We could not confirm thisRoom to refill and clean
We could not confirm this
We could not confirm the room needed to fill the hopper, use the dosing cup, or change the grind setting.
How we checked this
What the evidence labels mean
- Source checked
- A cited source stated this fact when Espresso Receipt checked it. This is not a physical product test.
- Our summary
- This is our summary of published product details. It is not a hands-on result.
- Sources disagree
- The available sources give different answers. Keep the conflict in mind and check the exact product.
- We could not confirm this
- The available sources do not establish one reliable answer.
Main source: Fellow. Source checked October 20, 2026. This page lists published product details. It is not a physical fit test.
Counter fit
Will it fit your space?
We could not confirm a stored size for the Fellow Opus 2 that is safe to plan around, so we do not say whether it fits. Sources publish different sizes, listed under Stored size above. Measure the exact unit before you buy.
Daily care and maintenance
These daily and scheduled steps can help keep the Opus 2 safe and working. Follow the manufacturer manual if it gives different instructions.
Use the safety manual’s U.S./Canada model identifiers before you use this maintenance card. The match between Fellow’s public variant SKU and the manual model IDs is not confirmed.
Before first use · For this modelWith daily use, clean the burrs at least every three months with the dry method allowed by the manual. Do not wash them or put them in a dishwasher.
At least every 3 months with daily use · For this modelUnplug the grinder before cleaning. Keep the burrs and housing away from water and the dishwasher.
Whenever cleaning · For this modelManual, definitions, and limits for this model
Manual: OP01AANA / OP02AANA safety manual 789-00291_F for the Opus 2. Follow the manufacturer manual for operation, maintenance, and safety.
The manual revision is the exact manual edition named above. A model identifies the product. A SKU is the exact seller or maker product code. Match all three to your machine before you follow these instructions.
- Model, SKU, and manual revision limit: The manual identifies OP01AANA / OP02AANA; Fellow’s public variant SKU 1222MB-NA is not proven equivalent.
- The match between Fellow’s public variant SKU and the manual model IDs is not confirmed.
- The current product page and manual list conflicting dimensions. This card does not resolve them.
- The captured grinder evidence has no filter, descaling, or service schedule.
What we checked
Product details we checked
- Stored size
- Sources disagree, so we do not use any of these sizes for fit checks. Fellow product page: 206 × 130 × 267 mm L × W × H. Fellow safety manual: 266.5 × 130 × 202 mm L × W × H. Measure the exact unit first. Compare sizes
- Voltage
- Direct-US unit, 120V
- Warranty
- 2 years
- Burrs
- 48mm stainless conical
- Adjustment
- Stepless
- Daily routine
- Weigh beans for each drink.
- Portafilters
- 54mm, 58mm
Pair it with a machine
Machines in the portafilter sizes it lists
Our records list the Fellow Opus 2 as working with 54 mm and 58 mm portafilters. These 14 machines in our list have no built-in grinder and use one of those sizes. Depending on the size, you may need to pour from a dosing cup. Check how it doses with the maker, and check the fit against the exact shape of your handle. The setup estimate adds the machine, this grinder, and $90 for basic setup items from our dated price checks. It is not a current quote.
| Machine | Portafilter | Price | Setup estimate |
|---|---|---|---|
| Breville Bambino | 54 mm | $299.95Dated price snapshot from September 16, 2026 | $589.90 |
| Gaggia Classic Pro E24 | 58 mm | $499Price checked October 20, 2026 | $788.95 |
| Breville Bambino Plus | 54 mm | $499.95Price checked October 20, 2026 | $789.90 |
| Flair 58 Plus 2 | 58 mm | $699Price checked October 20, 2026 | $988.95 |
| Gaggia Classic UP | 58 mm | $849Price checked October 20, 2026 | $1,138.95 |
| Rancilio Silvia | 58 mm | $995Price checked October 20, 2026 | $1,284.95 |
| Profitec GO | 58 mm | $1,199Price checked October 20, 2026 | $1,488.95 |
| Breville Dual Boiler | 58 mm | $1,599.95Dated price snapshot from September 16, 2026 | $1,889.90 |
| ECM Classika PID | 58 mm | $1,699Price checked October 20, 2026 | $1,988.95 |
| Lelit Elizabeth | 58 mm | $1,799.95Price checked October 20, 2026 | $2,089.90 |
| Ascaso Steel Duo PID V2.5 | 58 mm | $2,095Dated price snapshot from September 16, 2026 | $2,384.95 |
| Rancilio Silvia Pro X | 58 mm | $2,195Price checked October 20, 2026 | $2,484.95 |
| Lelit Bianca | 58 mm | $2,999.95Dated price snapshot from September 16, 2026 | $3,289.90 |
| La Marzocco Linea Micra | 58 mm | $4,500Dated price snapshot from September 16, 2026 | $4,789.95 |
Compare the four lowest-priced machines side by side →See every machine we track →
Plain definitions for product terms
- Portafilter
- The handled tool that holds the filter basket and locks into the machine.
- Dose
- The dry coffee put into the filter basket.
- Burrs
- The grinder parts that cut or crush coffee beans.
- Stepless adjustment
- A grinder control that moves smoothly between positions.
- Single-dose
- Weighing beans for one drink instead of leaving beans in the hopper.
- Dosing cup
- A small cup that catches ground coffee before you move it to the filter basket.
Facts and sources
Facts and sources
More things to check first
- Standard and premium colors have different prices. Premium wood variants were $249.95 on October 20, 2026.
Sources
Sources used
See a problem with a product detail? Send a correction.
Product details checked through 2026-10-20. Product details and price checks can change.
Use and care resources
Guides and manuals
- Site guideEspresso Receipt · practical guideHow to dial in espressoCovers: Use dose, yield, time, taste, and flow without chasing a universal grinder number.
- Site guideEspresso Receipt · practical guideEspresso grind size chartCovers: Translate adjustment systems into a safe starting process for espresso.
- Site guideEspresso Receipt · practical guideCoffee grinders for espressoCovers: Compare grind adjustment, burrs, dosing, and coffee left inside after grinding before choosing a grinder.
Independent reviews · not our tests
Independent reviews
- VideoBryan Caragay · published 2026-06Fellow finally did it - Opus 2 espresso grinderCovers: Espresso-focused review of the Opus 2 as the fixed successor to the original Opus.(opens in a new tab)
- VideoeXpresso · published 2026Fellow Opus 2 Grinder ReviewCovers: Hands-on review of the Opus 2 covering grind performance and features.(opens in a new tab)
- VideoStephen Thorsteinsson · published 2026-06The Fellow Opus 2 ReviewCovers: Tests the Opus 2 and compares it against the original Opus.(opens in a new tab)
These reviews come from other publishers. Espresso Receipt did not produce, commission, or endorse them. Their opinions belong to their creators. Links last checked 2026-07-31.