Burrs

Burrs

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An Analysis of Different Motor Drive Types in Coffee Grinders
LeBrew·
An Analysis of Different Motor Drive Types in Coffee Grinders

As of 2025, the global market for coffee grinder motor drive types has become increasingly mature, with both manufacturing techniques and structural designs advancing toward precision and diversification. Numerous innovative grinder designs have emerged, such as ULTRA’s cost-effective direct drive system, SOU SIK P1’s use of a planetary gear motor for conical burr grinders, and BOOKO Motto80’s tapered burr mounting system,...

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Electrostatic Control in Coffee Grinders: Coatings, Electrodes, Grounding & Structural Optimization
LeBrew·
Electrostatic Control in Coffee Grinders: Coatings, Electrodes, Grounding & Structural Optimization

During the coffee grinding process, high-speed friction between the burrs and coffee beans generates significant static electricity. This is one of the primary causes of coffee grounds scattering, residue buildup, and uneven extraction. Finer particles, with their larger surface area, are especially prone to static charge accumulation, resulting in messy powder dispersion, ingredient waste, and inconsistent cup quality.  

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The Story of SOU SIK and LeBrew
LeBrew·
The Story of SOU SIK and LeBrew

In 2024, SOU SIK, a brand infused with retro-futuristic mechanical aesthetics, was born in Shanghai, China. From its inception, it partnered with LeBrew, a specialist in burr design and manufacturing, to collaborate on burr geometry and development.

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Why we need to replace the burrs?
LeBrew·
Why we need to replace the burrs?

With prolonged use of a coffee grinder, its core components—the burrs—gradually lose their sharpness and begin to dull visibly. In some cases, chipping along the edges may also occur. This is particularly common in commercial espresso grinders, where burrs are subjected to heavy grinding loads, frequent cleaning, and repeated recalibration. Common wear issues include erosion in the triangular zone, coating...

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Hyper Burrs | What affects grinding efficiency?
LeBrew·
Hyper Burrs | What affects grinding efficiency?

What makes some burrs grind faster and more precisely than others? This article breaks down the geometry of coffee burrs—including crushing zones, dump powder channels, and grind paths—to reveal how they affect grinding efficiency across espresso and filter applications.

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Blind Burrs | The Pinnacle of Grinding Design
LeBrew·
Blind Burrs | The Pinnacle of Grinding Design

In 2025, LeBrew launched its first blind-hole burr — the Hyper Burrs 98mm Filter Blind.

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