Take your coffee ritual to the next level with the StepUP Coffee Manual Coffee Grinder Chestnut S3. Crafted from a full-metal unibody and outfitted with precision S2C890 steel conical burrs, this grinder delivers true flavor clarity.

• Ultra-Fine External Adjustment: The new lens-like external ring offers 0.015 mm per click accuracy—dial in the perfect espresso grind or switch to pour-over or French press with ease.

• S2C890 Burr Technology: These patented stainless steel burrs reduce fine particles and elevate sweetness and cup body.

• Precision Engineering: Custom high-precision bearings improve stability by 20%, ensuring uniform grind consistency each time.

• Foldable Handle for Portability: The spring-assisted, foldable handle makes this a prime portable coffee grinder, perfect for counter storage or travel.

• Built for Durability: Made from hardened SUS420 stainless steel with 6-axis CNC machining and 58 HRC sharpness, this grinder is built to last. 

• Stable & Quiet Use: With a silicone base and innovative bearing design, this grinder stays steady and quiet—perfect for early mornings or communal spaces. 

Designed for portability and precision, the Chestnut S3 lets you grind coffee exactly how you want—whether you're brewing espresso, pour-over, or French press—without sacrificing convenience or flavor.