Timemore · Conical burrChestnut C3 Max
A bigger-hopper version of Timemore's budget-darling C3 hand grinder, built around the same 38mm S2C conical burrs but scaled up to a 30g dosing chamber for grinding more than a single cup at a time.
The short version
It is the C3's grind quality with a bigger hopper bolted on, which is exactly what you want if you brew for two but do not want to pay Pro/S prices.
Accept that the handle does not fold and the internal parts are part-plastic, so it is a kitchen-counter grinder more than a travel one.
Why people buy it
- 38mm S2C660 conical burrs give clean, consistent results across brew methods, including usable espresso settings
- 30g hopper handles bigger pour-over batches or back-to-back cups without refilling
Why they don’t
- Non-folding handle and part-plastic internal stabilization parts make it less travel-friendly than the Pro/S variants
The full tally
- 38mm S2C660 conical burrs give clean, consistent results across brew methods, including usable espresso settings
- 30g hopper handles bigger pour-over batches or back-to-back cups without refilling
- Dual-bearing shaft keeps grind particle size consistent and the crank spins smoothly
- Aggressively priced against other hand grinders with metal conical burrs
- Non-folding handle and part-plastic internal stabilization parts make it less travel-friendly than the Pro/S variants
- Espresso range is narrow; only a handful of the roughly 36 click positions are actually fine enough for espresso
- Grinding speed lags behind the newer S2C burr generations used in updated C3S models
What the community knows
Years of owner threads, distilled — well regarded.
Honest hand grinder that delivers clean filter grinds at a beginner-friendly price but candidly maxes out on espresso (1-2 usable settings); community respects the transparency and rates it the rightful entry point for manual grinding, knowing it's a launch pad not a destination.
Value
price-to-performance the community respects
Beginner fit
kind to first-timers
Reliability
shows up every morning, year after year
All 9 community measures
price-to-performance the community respects
shows up every morning, year after year
parts and repairs — you are never stranded
mods, guides, and community know-how around it
kind to first-timers
years before you outgrow or replace it
how far the cup can go, per dollar
speed and simplicity, day to day
Worth knowing before you buy — Most hand-grinder buyers wish they'd understood the espresso wall BEFORE they committed; Chestnut C3 Max is the grinder that teaches that lesson early and saves the false-start money.
Known weak points — Burr loosening reported in some units after extended use; handle stress at high-torque settings on lighter alloys; otherwise no systemic failures documented in community record.
The measurements
Scored 0–5 on the same rubric as everything on file — the words matter more than the numbers.
The measurements
0–5, one rubric- Espresso
- entry2.5
- Versatility
- flexible4
- Built to last
- fair3
Position in the market
Every dot is a rival, measured the same way. The gold one is this.
- Lower half for espresso suitability
- a higher ceiling than 31 of the 154 grinders we’ve measured
- A value pick at this level
- 98% of grinders this capable cost more
- Lower half for build
- sturdier than 12% of the field, by the community’s own record
Every dot is a grinder measured on the same rubric. See the whole market
Living with it
The part spec sheets skip: counter space, upkeep, and what owners learn later.
The honest note — Owners who want espresso precision typically move to the C3 ESP or C3S Pro for finer click resolution, or step up to a premium single-dose electric grinder once daily cup count or dial-in obsession grows.
The full spec sheet
- Class
- Hand grinder
- Burrs
- 38mm conical
- Drive
- Hand-cranked
- Adjustment
- Stepped (micro)
- Clarity lean
- Balanced
- Espresso suitability
- 2.5/5
- Brew versatility
- 4/5
- Single dosing
- Yes
- Hopper
- 30 g
- Workflow demand
- 4/5
- Maintenance
- 2/5
- Noise
- 1/5
- Build longevity
- 3/5
Before it arrives
What completes this grinder — the faded pieces can wait.
Coffee scale with timer — Espresso is a ratio. A 0.1g scale with a built-in timer is the single biggest consistency upgrade for any manual machine.
- Coffee scale with timer — Espresso is a ratio. A 0.1g scale with a built-in timer is the single biggest consistency upgrade for any manual machine.
- Dosing cup — Pairs with single-dose grinding — grind into the cup, swirl, and transfer to the portafilter cleanly.
- Grinder cleaning kit — Brushes and grinder tablets keep retention and stale grounds in check.
Feed it right
Week one is dial-in — and stale beans will lose it.
Coffee more than a few weeks past roast won’t extract predictably, and a new grinder gets blamed for it. A balanced burr set: rotate origins freely — it will keep up.
Pick your coffee — any of these dials in beautifully here:
Etherea - Ethiopian YirgacheffeSCA 88Medium roast · NaturalJasmine · BergamotSteady and repeatable — right for this setup’s lane.CA$24.16 · roasted to order
Sergio - Brazillian Fazenda Joia Rara Aerobic FermentedSCA 88Medium-light · Cerrado Mineiro · Aerobic FermentedHoney · OrangeSteady and repeatable — right for this setup’s lane.CA$29.18 · roasted to order
Eden Gesha - Colombian MiramarSCA 87Medium-light · Kennedy, San Agustin, Huila · WashedCherry blossom · Tropical fruitSteady and repeatable — right for this setup’s lane.CA$26.24 · roasted to orderWhole bean coffee, with the roast date on each bag.
Prefer regular deliveries? RoastPlan is RoastAroma’s coffee subscription. Choose your coffees and their available options, then set deliveries every 1–6 weeks.
One-time RoastAroma orders are roasted to order in Ajax, Ontario and ship Canada-wide. We’re the roastery behind this database — measuring the machines is how we make sure the coffee gets a fair shot.
Common questions
Can the Timemore Chestnut C3 Max grind fine enough for espresso
Yes, but only in a narrow band near the fine end of its roughly 36-click range; most of the adjustment range is better suited to pour-over and French press.
How is the C3 Max different from the C3 Max Pro
The C3 Max Pro adds a foldable metal handle for travel; the standard C3 Max uses a fixed, non-folding handle and is intended more for home counter use.
Worth comparing
Hario
Mini-Slim Plus
A pocket-sized ceramic conical hand grinder built for travel and single-cup brewing, not for serious espresso or big batches.
CA$45–60 · US$35–45
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