BurrBench
1Zpresso C2 Manual Coffee Grinder
1Zpresso C2 Manual Coffee Grinder1Zpresso C2 Manual Coffee Grinder1Zpresso C2 Manual Coffee Grinder

Specifications

Burr Size48mm stainless steel conical
Adjustment TypeExternal, click-based numbered ring
Body MaterialAluminum alloy with coating
Weight约420g
CapacityApprox. 30g coffee beans per grind
Manual Burr Grinder

1Zpresso C2 Manual Coffee Grinder

by 1Zpresso

The 1Zpresso C2 is a superb entry point into precision hand grinding, offering external adjustability, a durable 48mm burr set, and impressive grind consistency across brew methods from French press to pour-over and even light espresso work.

4.5rating
BurrBench verdictScored 4.5/5 across consistency, retention, value and build.

1Zpresso C2 Manual Coffee Grinder

by 1Zpresso

  • Fast consistent grinding
  • External click adjustment
  • Compact travel-friendly design
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Independently bought & tested · Backed by BurrBench bench standards

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Key features

0148mm stainless steel conical burr set
02Externally adjustable click-based settings (numbered ring)
03Aluminum alloy body with anti-slip coating
04Detachable powder-catching bin with magnetic hold
05Foldable stainless steel handle for compact storage
06Suitable for espresso-to-French press grind range

Our full review

The 1Zpresso Chestnut C2 is a compact manual coffee grinder designed for coffee drinkers who want café-quality grounds without relying on electricity. Built around a 48mm conical stainless steel burr set, it delivers consistent particle sizing that suits everything from coarse French press brews to fine espresso-adjacent grinds, though it truly shines with pour-over and drip methods. The body is crafted from anodized aluminum, giving it a lightweight yet sturdy feel that's easy to hold and operate, while the internal mechanism uses a smooth bearing system that reduces wobble and keeps the crank turning with minimal effort even as the burrs work through denser, oilier beans.

What sets the Chestnut C2 apart from many manual grinders in its price range is its external stepped adjustment dial, which allows users to change grind settings quickly and repeatably without opening the unit or fumbling with internal screws. Each click corresponds to a precise shift in burr gap, so once you find your ideal setting for a particular brew method, you can return to it exactly the next time simply by counting clicks.

This feature makes the grinder especially appealing to those who switch between multiple brewing styles throughout the week, since dialing in a new grind size takes seconds rather than minutes of trial and error. Capacity-wise, the Chestnut C2 holds around 25 to 30 grams of beans per load, making it well-suited for single servings or small batches rather than large-scale brewing sessions. The grinding chamber and catch cup are both removable and easy to clean, and the overall footprint is small enough to toss into a travel bag, making it a popular choice among campers, office workers, and travelers who don't want to sacrifice grind quality on the go.

Its combination of external adjustment, solid build quality, and portable size has made it a frequently recommended entry point into the 1Zpresso lineup for anyone serious about upgrading their manual grinding setup.

Pros & cons

Pros

  • Fast, consistent grinding with minimal effort
  • Precise external adjustment allows quick grind changes
  • Very portable and travel-friendly design
  • Well-built with high-quality materials throughout
  • Low retention of coffee grounds after grinding
  • Great value compared to similarly performing grinders

Cons

  • Grind range is wide but not ideal for ultra-fine espresso
  • Plastic-free but the bin capacity is on the smaller side
  • Handle attachment can feel slightly loose over time
  • No spec for portability
  • No included brush for cleaning

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