Espresso in the morning, pour-over in the afternoon? The Timemore Chestnut S5 Pro is your all-around machine for any brewing method. Its redesigned 48-mm burr grinder gently pre-cracks the beans – for noticeably less resistance and an extremely uniform grind. Thanks to the external grind setting with precise 15-micrometer increments, it combines high-end performance with a sleek design. The result in the cup: outstanding sweetness and delicately pronounced flavors.
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Timemore has launched a new grinder: the Chestnut S5 Pro. Its innovative grinding mechanism delivers results that can easily rival those of grinders in much higher price ranges. Even the beginner-friendly C Series has impressed with its value for money. The S5 Pro takes it a step further with its more precise construction, allowing for significantly more precise control during the extraction of complex coffees.
The Centerpiece: The 48-mm TriB-048-I Grinding Mechanism
This grinding mechanism is a technical masterpiece. The active grinding surface has been increased by a whopping 52% compared to the older S2C890. It combines three mechanical processes—compression, shearing (tearing apart), and piercing the bean—before the bean even reaches the main grinding chamber. This simulates an ingenious “slow feeding” effect: The beans break into more uniform fragments, the resistance when turning the handle decreases noticeably, and the result is an consistent grind with minimal fines. For the cup, this means that extraction proceeds extremely evenly. Instead of harsh bitterness or sour notes caused by an uneven grind, tremendous clarity, intense sweetness, and complex flavor nuances come to the forefront.
Precision in Lens Design
The external grind adjustment is modeled after a camera lens. With 90 clicks per rotation and extremely fine 15-micrometer increments, the S5 Pro can be precisely adjusted to your recipe. It’s a true all-rounder for all brewing methods:
- Espresso: 0 to 2.0 units
- Moka (stovetop): 1.0 to 3.0 units
- Pour-Over (filter coffee): 5.0 to 8.0 units
- French press: 8.0 to 9.0 units
Mechanics & Ergonomics
To ensure this exceptional precision in everyday use, Timemore incorporates custom-made ball bearings with a manufacturing tolerance of just 5 micrometers. This means the axle has virtually no play when cranking and is perfectly stabilized – making the S5 Pro 20% more precise than its predecessor, the S3.
At the absolute zero point, a guaranteed distance of 75 micrometers remains between the grinding discs, which prevents harmful friction (“burr rub”).
Handling has also been improved: A flared inlet makes filling the grinder with beans a breeze. The crank knob offers 82.4% more volume and is over 60% wider than on the S3, which noticeably maximizes leverage and comfort.
Thanks to its innovative 48-mm burr, extremely fine grind settings, and minimized fines, the Timemore S5 Pro delivers an exceptionally clean and sweet flavor profile, from espresso to French press.
