Varia｜VS4 Electric Grinder 【Hong Kong Official Product｜One-Year Warranty】
Varia｜VS4 Electric Grinder 【Hong Kong Official Product｜One-Year Warranty】
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Experience unparalleled precision grinding!
The VS4 redefines your coffee ritual through a perfect balance of engineered precision and mechanical excellence.
Powered by a 200-watt brushless motor with a planetary gearbox and variable speed control (150-300 RPM), this grinder delivers uncompromising consistency, torque, and control. At its core, a 53mm 6-core conical burr set ensures exceptional uniformity and clarity in every grind, from espresso to cold brew, maintaining outstanding consistency across the entire grinding spectrum.
Superior Burr Design
Precision-engineered 53mm 6-core conical burrs achieve optimal particle size distribution and a cleaner flavor profile across all brewing methods. Their geometry and alignment are optimized for balanced extraction and clear flavor presentation.
Powerful and Efficient
Driven by a 200-watt brushless motor and planetary gearbox, the VS4 maintains consistent torque and smooth performance at variable speeds (150-300 RPM), offering precise control for every grind characteristic.
Low Retention Design
The patented integrated removable burr chamber features a quick-connect bayonet system, ensuring low retention and easy maintenance. This design minimizes grind waste and allows for quick, tool-free disassembly while maintaining perfect alignment.
Robust Hopper Adjustment
The 10-micron stepless adjustment system allows for ultra-fine grind control from espresso to cold brew, maintaining high consistency across the entire grind range. Independent internal adjustment threads eliminate hopper drift, thread misalignment, and wear, ensuring smooth, repeatable, and precise calibration every time.
Active Ionization Technology
Integrated active ionization technology neutralizes static electricity and preserves coffee aroma, resulting in a cleaner, more uniform grind with reduced clumping.
Electrical Specifications:
Power: AC 100-120V or 220-240V, 50/60Hz.
Motor: 200W brushless DC motor (high torque, low noise design)
Motor Speed: Variable, 150–300 RPM (user adjustable)
Torque: 14.5 N·m (with planetary gearbox reduction)
Gearbox: Planetary gear drive, metal gears (provides approximately 10:1 reduction ratio for torque multiplication and speed stability under load)
Thermal Protection: Built-in temperature sensor with logic control – grinder monitors motor/drive temperature and may pause operation to prevent overheating.
Grinding Specifications:
Burr Type & Size: 53mm conical burr set, stainless steel (seven-sided or multi-angled conical design, suitable for espresso and pour-over coffee). Factory burrs are high-hardness tool steel (HRC~58, high-nitrogen stainless steel).
Burr Speed: 150–300 RPM (user-controlled, lower speeds minimize heat and static).
Grind Adjustment: Stepless internal adjustment ring, clockwise for finer, counter-clockwise for coarser.
Grind Scale: Scale from finest to coarsest. Factory calibration point is "0", which is the burr touch point (do not grind at "0"). Adjustment precision is approximately 0.01mm per click (10 microns per click). This allows for extremely fine adjustments.
Grind Range: Capable of grinding from fine Turkish/espresso grinds (approx. 100–200 microns particle size) to coarse French press grinds (1000+ microns). Total grind range is approximately 2.5 revolutions of the adjustment ring, from zero to fully open (may be indicated as 0–10 on the dial).
Recommended Use: Suitable for espresso machines, Moka pots, pour-over coffee makers, drip coffee makers, AeroPress, French press, and cold brew makers. (Note: Extremely fine Turkish coffee grinds are near the limit of adjustment but can be calibrated by going slightly past zero – caution is advised to avoid burr contact.)
Output and Throughput:
Hopper Capacity: 30-40 grams of beans (designed for single-dosing; clear with bellows after each dose).
Grounds Bin Capacity: Approx. 40 grams (included dosing cup holds approx. 40g of ground coffee).
Grinding Speed: At medium grind and full motor speed, grinding speed is approx. 1.5–2.0 grams/second. Espresso grind speed is approx. 1 gram/second (actual speed will vary based on coffee bean type and grind setting). The planetary gearbox ensures stable grinding speed even when grinding dense coffee beans and fine grinds.
Retention: <0.2g without RDT (dry), <0.1g with RDT or bellows (10g dose, measured after seasoning). In practice, due to the vertical path and blow-out system, retention is virtually zero.
Test Conditions: 150 RPM (45% humidity, medium/light roast Arabica beans, 7 days post-roast). Test results may vary depending on coffee bean variety, roast level, freshness/degassing, and environmental factors.
Dimensions (L×W×H): 161.4 mm × 97.7 mm × 337 mm (approx. 6.35 in × 3.85 in × 13.27 in). Compact footprint saves counter space; height includes hopper and lid.
Weight: 5.27 kg (approx. 11.617 lbs). This substantial weight comes from the motor and metal construction, contributing to stability.
Materials: Aluminum alloy, stainless steel, food-grade plastic, food-grade silicone.
AC Power Cord Length: 1.2 meters.
Includes:
1 x Varia VS4 Grinder
1 x 58mm Dosing Cup
1 x 1.2m AC Power Cord
1 x Hopper Bellows
1 x RDT Spray Bottle
1 x Cleaning Brush
1 x Spare Parts Kit
1 x Instruction Manual
1 x Sticker Set
Product Appearance Disclaimer:
VS3, VS4, and VS6 grinders are manufactured with precision techniques combining spray painting and anodization processes. Due to the nature of these surface treatments and production processes, subtle variations may exist between different product batches. These variations are normal and meet Varia's quality control standards.
Painted Parts - The external painted surfaces may have tiny spots or marks with a diameter not exceeding 0.2 mm, caused by the body molding process. These minor surface imperfections are inherent characteristics of the manufacturing process itself and comply with our quality control standards.
Anodized Parts - Such as the hopper outer frame, locking ring, lid, and other aluminum parts, may have subtle imperfections. These imperfections can occur during the anodization process and when removing parts from coating fixtures. Slight color variations may also exist between anodized components. These variations are normal and comply with our quality control standards.
Varia employs strict quality control standards to ensure high performance and reliability of its products. None of the aforementioned aesthetic characteristics affect functionality or performance and are within specifications.
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Experience Unparalleled Precision Grinding!
The Varia VS4 is the next evolution in single-dose grinders — combining a 200W brushless motor, precision planetary gearbox, and 53mm 6-core conical burr system for outstanding consistency from espresso to filter.
The world's first integrated burr chamber, fully CNC machined and anodized, enables ultra-low retention and a clean, efficient workflow. Electro-mechanical flow geometry guides coffee grounds through the burr chamber with aerodynamically stability, ensuring smooth particle flow, minimal static, and predictable extraction.
Precision Engineered with 76.5° Inclined Geometry
• The VS4 adopts Varia’s signature 76.5° inclined architecture, efficiently feeding beans into the burrs while maintaining a nearly vertical exit path for a clean, consistent output.
This geometry minimizes retention, optimizes particle density, and supports true single-dosing performance — laying the groundwork for the VS4's speed, cleanliness, and grind uniformity.
Precise Independent Hopper Adjustment
• The VS4's 10-micron stepless adjustment system delivers ultra-fine control across the entire grind range, enabling barista-level precision for every brew type.
• An independent internal threading mechanism eliminates thread misalignment, hopper drift, and wear, guaranteeing smooth, repeatable adjustments and preserving its precise calibration for years of use.
• Every actuation feels precise, secure, and perfectly damped – a tactile manifestation of mechanical integrity.
Hopper Quick-Release System
• The VS4 introduces a patented quick-release hopper system, designed for instant, tool-free access to the grinding chamber.
• A precisely engineered bayonet mechanism means the hopper ring engages and disengages with just a 10-degree rotation — allowing the hopper to be fully opened in less than a second.
• When disengaged, the system also automatically disconnects the power circuit between the motor and the chamber assembly, ensuring absolute safety during cleaning or maintenance.
• Re-engagement is just as effortless: the hopper aligns and locks with a smooth, precise motion, instantly restoring full power and calibration.
Modular Drive and Chamber Assembly
• The VS4 introduces a patented modular chamber and drive assembly, allowing the entire burr and drive shaft system to be removed from the grinder body in one piece.
• The hopper quick-release mechanism connects and detaches via a precisely engineered bayonet system. Once detached, the entire burr chamber, drive shaft, and bearing assembly lifts away as a unified module – one that is laser-aligned, independently sealed, and mechanically isolated from the motor housing.
• Because the burr alignment, bearings, and chamber geometry are machined as one unit, the VS4 consistently maintains concentricity with zero mechanical drift over time. Every reconnection restores factory precision – no recalibration needed, no misalignment, and no compromises.
Superior Burr Design
• The VS4 features a 53mm 6-core conical Supernova burr set, engineered for clarity, uniformity, and smooth particle flow.
• Its geometry is meticulously modeled to balance cutting speed with particle flow, reducing drag and ensuring even distribution across the entire grind range.
• A future-proof burr interface allows for burr set upgrades, to be released in early 2026 (requires minor disassembly for installation).
Powerful Brushless Motor & Planetary Gearbox
• The VS4’s 200W brushless motor operates with near-silent efficiency, generating exceptionally smooth torque while minimizing mechanical vibration. Its planetary gearbox transmits power through multiple stages of reduction, stabilizing RPM under load and maintaining consistent burr performance at all times.
• This precise drive system ensures consistent torque output even when grinding high-density light roast beans or at finer espresso settings. Testing confirms RPM stability within a ±1.5% tolerance across the entire speed range (150–300 RPM), which translates directly to consistent particle sizes and predictable flavor results.
Electro-Dynamic Flow Geometry
• Every contour within the chamber features an electro-dynamic flow geometry, a proprietary surface topology engineered to guide ground coffee along a precise, turbulence-free path.
• This design prevents static charge accumulation and guides particles in a smooth, laminar flow, minimizing friction, clumping, and waste.
• This, combined with the fully anodized one-piece grind chamber and grind shaft, creates an extremely smooth surface with minimal adhesion. Ground coffee flows freely during grinding, maintaining a uniform density and distribution from burrs to output chute.
• The VS4 achieves stability and cleanliness uncommon in compact grinders by combining advanced chamber geometry with low-friction anodized surfaces — a precise orchestration of airflow, particle movement, and static control.
Low Retention Design
The VS4 features a world-first patented one-piece burr chamber, precision CNC-machined from a single block of alloy and fully anodized for extremely low material adhesion. This seamless construction eliminates part lines and seams, creating a continuous internal path that optimizes coffee flow and drastically reduces coffee retention.
• All surfaces inside the grinding chamber—including the grind shaft—are precision-milled and anodized for an extremely smooth surface, ensuring ultra-low static, near-zero retention, and exceptional long-term durability. Combined with Varia’s quick-connect bayonet system, the grind chamber can be disassembled for cleaning without tools and instantly reinstalled for perfect alignment and calibration.
Tested Retention Data (10g Dose):
Without RDT
• Espresso (Setting 3): 0.10–0.35g
• Filter (Setting #10): 0.05–0.15g
With RDT
• Espresso (Setting 3): 0.00–0.06g
• Filter (Setting #10): 0.00–0.02g
Test Conditions: 150 RPM (45% Humidity, Medium/Light Roast Arabica Blend, 7 Days Rested). Test results may vary based on coffee bean varietal, roast level, freshness/degassing state, and environmental factors. Doses tested without RDT utilized the bellows (3-4 pumps), doses tested with RDT did not utilize the bellows.
RPM Control
The VS4 features a variable stepped RPM system, allowing you to set your preferred grinding speed once and lock it in.
With a single press, the grinder starts and runs at your chosen RPM precisely. No need to reset or readjust between each grind. Every time you grind, the RPM remains fixed, stable, and repeatable.
This RPM stability doesn’t just streamline workflow:
• It impacts fines production
Higher RPMs increase particle fracture, while lower RPMs generate a tighter, more uniform distribution. A fixed RPM ensures consistent results for every dose.
• It stabilizes particle distribution
Controlled, predictable motor speeds mean consistent shear forces at the burrs — critical for espresso clarity, sweetness, and repeatability in filter coffee.
• It helps control retention
Uniform RPMs reduce micro-vortex turbulence within the chamber, leading to cleaner evacuation and more stable low-retention performance.
Dual-Bearing Drive System
• Mechanical precision begins with perfect alignment.
• The VS4’s drive shaft is supported by a dual-bearing system — two precision bearings mounted within the lower chamber, mated with concentric mounting pads machined onto the grinder body, to stabilize the shaft under load.
• This construction ensures that the burr set maintains perfect concentricity and stability even at high torque levels, maintaining parallelism throughout the grinding cycle.
Each bearing is seated in a rigid, CNC-machined mount to prevent drift or deformation over long-term use. The resulting drive system eliminates axial movement and vibration, preserving alignment, reducing wear, and ensuring long-term mechanical integrity.
• When paired with the brushless motor and planetary gearbox, this alignment system allows for smooth rotational balance and consistent grinding performance, every single grind.
Fine-Tune Calibration & Alignment
• In addition to the stepless adjustment ring, the VS4 includes a fine-tune adjustment system built into the outer burr carrier.
• The five-hole design allows users to mechanically shift the burr’s zero point with ±20 micron precision, enabling hyper-accurate alignment. This ensures perfect parallelism between the burrs and allows for laboratory-grade adjustments to the grinder – compensating for burr wear or alignment shifts over time.
Particle Distribution
53mm Stainless Steel Supernova Burrs
Burr Particle Size Laser Analysis
Please note: Due to laboratory conditions, QICPIC laser analyser data is provided for reference only. Hand sifting results may vary.
「根據香港法律，不得在業務過程中，向未成年人售賣或供應令人醺醉的酒類」
”Under the law of Hong Kong, intoxicating liquor must not be sold or supplied to a minor in the course of business.”
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