Some grinders do the job. The C5 Pro does it better.
Timemore's Chestnut C series has always punched above its weight — precise, portable, and built to last. With the C5 Pro, they've taken everything that worked and quietly made it exceptional. New burrs. A smarter dial. A body that feels like it means business. The result is a grinder that belongs on any serious home brewer's counter, whether you're pulling shots before work or chasing a slow Saturday pour-over.
The Burrs
At the heart of the C5 Pro is the new S2C-042-III burr set — Timemore's largest conical burrs yet at 42mm, machined from SUS420 hardened stainless steel via 5-axis CNC and hardened to 55–58 HRC. The grinding path runs 16.23% longer than the previous-generation S2C660, which translates to a tighter particle distribution across the board: more fines where espresso needs them, fewer where pour-over doesn't. The outcome in the cup is brighter acidity, better balance, and a clarity that holds up as the coffee cools. A 5% improvement in grind consistency over the C3S Pro means you can push extractions higher without tipping into astringency.
The Dial
The C5 Pro's numbered stepped dial moves 0.031mm per click with 48 clicks per revolution, and every position is clearly numbered, so you're dialing in from a real reference point instead of counting from zero each time. It's a small change that makes a meaningful difference when you're tweaking your espresso recipe at 6am.
Here is our recommended grind settings for the C5 Pro:
- Espresso / Moka: 5–8 clicks
- Pour-over: 10–14 clicks
- French Press: 14–17 clicks
The Build
The C5 Pro is all-metal construction with a unibody aluminum alloy and stainless steel construction that doesn't flex, rattle, or wear in. Custom high-precision bearings keep the burrs aligned on dual axes with tolerances as tight as 0.007mm, so every rotation is smooth and stable. The 53mm body is wrapped in a refined grid engraving that gives you a confident, slip-free grip even with wet hands. A new XL funnel opening makes dosing easier and less messy, while the grippy silicone base keeps things planted and quiet on any surface.
Disassembly is straightforward. The drop-out burr design means cleaning and maintenance won't eat into your morning.
Endorsed by Matt Winton, 2021 World Brewers Cup Champion and Timemore Grinder Technical Consultant.
PRODUCT MANUAL
Timemore · Chestnut C Series
Model Comparison
A side-by-side breakdown of the C3S Pro, C3 Esp Pro, and C5 Pro — burrs, precision, grind settings, and full specs.
Full comparison
| C3S Pro | C3 Esp Pro | C5 Pro ↑ | |
|---|---|---|---|
| Colors | Black / White | Black | Black / White |
| Burr set | S2C660SUS420 · Ø38mm | S2C660SUS420 · Ø38mm | S2C-042-IIISUS420 · Ø42mm |
| Adjustment | 0.0833mm / click12 clicks / rev | 0.0233mm / click30 clicks / rev | 0.031mm / click48 clicks / rev |
| Dial type | Classic stepped | Numbered espresso v1 | Numbered stepped |
| Grind uniformity | ★★★★ | ★★★★ | ★★★★ |
| Flavor | Clear, layered, complex | Clear, layered, complex | Brighter acidity, better balance, distinctive clarity |
| Dimensions | 147 × 52 × 159mm | 147 × 52 × 159mm | 159 × 53 × 163.5mm |
| Weight | Approx. 530g | Approx. 530g | 530g / 640g |
| Capacity | Max 25g | Max 25g | Max 25g |
| Materials | 420 Stainless Steel · Aluminum Alloy · Stainless Steel | ||
Recommended grind settings
C3S Pro
C3 Esp Pro
C5 Pro
C5 Pro key specs
Burr size
Ø42mm
Largest in C-series
Precision
0.031mm
Per click
Capacity
25g
Max dose
Bearing
0.007mm
Dual-axis tolerance
Colors of actual products might show up slightly different than in the product photos. This is due to the various settings of monitors. Every monitor or mobile display has a different capability to display colors, and every individual may see these colors differently. In addition, lighting conditions at the time the photo was taken can also affect an image's color.
Products that have a shimmering coating will also show differently under different lighting setup. Colors might appear different even under a fluorescent light or a warmer shade bulb.
Please do not wash or rinse this grinder, utilize a brush or air hand pump to clean from debris, and storing in a cool dry place.
This grinder was designed with coffee beans in mind, we cannot guarantee the grinder will hold up on wear for other items.
Please keep this grinder out of reach from from children, the burr edges are quite sharp, use caution while operating and do not place fingers near the gears.
We suggest consulting a professional technician for any repairs or replacement needed.
Please do not disassemble or replace any parts of this grinder personally as there is a possibility of damage or issues in operation on reassembly.
