The Timemore Chestnut S5 Pro is a high-performance manual coffee grinder for anyone who doesn't want to commit to just one brewing method. Espresso in the morning, pour-over in the afternoon, and French press on the weekend: with its wide adjustment range, the S5 Pro is designed as a versatile all-rounder.

At its core is the new 48 mm TriB-048-I burr set. Its active grinding surface has been increased by 52% compared to the S2C890. Before reaching the main grinding area, the beans are broken down in a controlled manner through a combination of compression, shearing, and piercing. This structure creates a "slow-feeding" effect, reduces grinding resistance, and supports uniform particle distribution with a low percentage of fines.

The goal is evident in the cup: the most uniform extraction possible, bringing clarity, sweetness, and distinct flavors to the forefront.

Adjustment is particularly precise via the external grind setting dial, which is reminiscent of a camera lens. There are 90 clicks per rotation, with 15 micrometers per click. This allows the grind size to be finely tuned to different beans, recipes, and brewing methods.

The S5 Pro is also mechanically engineered for high precision. Custom ball bearings with a stated manufacturing tolerance of just 5 micrometers stabilize the shaft during grinding. According to the manufacturer, this construction achieves 20% higher precision than the S3. Furthermore, there is a 75-micrometer gap between the burrs at the zero point, which is intended to prevent them from rubbing against each other.

The funnel-shaped inlet and the significantly enlarged crank knob ensure more pleasant handling. In this way, the Chestnut S5 Pro combines high grinding precision with comfortable operation and a sleek, black design.

Grind size recommendations

• Espresso: 0–2.0 units
• Moka / Stovetop: 1.0–3.0 units
• Pour-Over: 5.0–8.0 units
• French Press: 8.0–9.0 units

These figures serve as a starting point. The optimal grind size depends on factors including the coffee, recipe, and preparation method.

Technical details

• Model: Timemore Chestnut S5 Pro
• Product type: Manual coffee grinder
• Burr set: TriB-048-I
• Burr diameter: 48 mm
• Grind adjustment: External
• Resolution: 90 clicks per rotation
• Adjustment: 15 µm per click
• Suitable for: Espresso, Moka, Pour-Over, and French Press
• Ball bearing tolerance: 5 µm
• Burr gap at zero point: 75 µm
• Special features: Flared inlet, enlarged crank knob, stabilized grinding shaft
• Color: Black