Varia VS4- Precision Coffee Grinder with Conical Burr

Precision-engineered single-dose workflow
53 mm conical burrs for exceptional clarity
Stepless 10-micron adjustment for ultimate control
Brushless motor with planetary gearbox torque
Ultra-low retention & clean grinding path
Tool-free quick-release chamber
Active ionisation for reduced static
Perfect for Espresso and Filter coffee enthusiasts

Power Supply: 220-240 V, 50/60 Hz.
Motor: 200 W Brushless DC motor (high-torque, low noise design)
Motor Speed: Variable, 150–300 RPM (user adjustable)
Torque: 14.5 N·m at the burr (with planetary gearbox reduction)
Gearbox: Planetary gear transmission, metal gears (provides ~10:1 reduction for torque multiplication and consistent speed under load)
Thermal Protection: Internal temperature sensor with logic control – the grinder monitors motor/driver temperature and may pause operation to prevent overheating.

Burr Type & Size: 53 mm conical burr set, stainless steel (heptagonal or multi-angle conical design for espresso & filter versatility). Factory burr is high-hardness tool steel (HRC ~58, high-nitrogen stainless).

Low retention Design
Tested Retention Figures (10 g dose):

Without RDT
• Espresso (Setting #3): 0.10–0.35 g
• Filter (Setting #10): 0.05–0.15 g-

With RDT
• Espresso (Setting #3): 0.00–0.06 g
• Filter (Setting #10): 0.00–0.02 g

Test conditions: 150RPM (45% humidity, 7 days rested medium/light roasted arabica blend). Results can differ depending on the coffee variety and roast degree of coffee used as well as the freshness/degassing status of the coffee and environmental factors.

Varia VS4 Grinder — Frequently Asked Questions (FAQ)
1. Is the Varia VS4 a single-dose grinder?

Yes. The VS4 is designed specifically for single-dose grinding, with a hopper capacity of 30–40 g. This ensures maximum freshness, accuracy, and extremely low retention. The workflow encourages dosing beans before each grind for the best results.

2. What grind range does the VS4 support?

The VS4 is capable of grinding from Turkish/espresso fine (100–200 microns) all the way to coarse French press (1000+ microns). The full adjustment range is approximately 2.5 revolutions from zero to fully open, providing excellent versatility for espresso, moka pot, pour-over, drip, AeroPress, French press, and cold brew.

3. How do I adjust the grind size?

The grinder uses a stepless 10-micron internal adjustment system.

Turn clockwise for finer grind.

Turn anticlockwise for coarser grind.
The adjustment scale is marked from fine to coarse, and the factory calibration aligns “0” with the burr touch point (do not grind at “0”).

4. What motor and speed does the VS4 use?

The VS4 is powered by a 200 W brushless DC motor with a planetary gearbox. The motor speed is adjustable between 150–300 RPM, allowing control over heat, clarity, and grind uniformity during operation.

5. How do I set the RPM and start grinding?

Set your desired RPM using the control dial on the side of the grinder.
Espresso typically benefits from lower RPM (e.g., 150–180).
Filter coffee may use higher RPM (e.g., 250–300).
Press the power button to begin; the burrs will start rotating immediately at your selected speed.

6. What is the proper way to use the bellows?

After grinding, once the burrs have stopped, press the single-dose bellows to blow out any remaining grounds from the grinding chamber. This helps ensure the VS4’s ultra-low retention performance and a cleaner workflow.

7. How do I maintain or clean the grinder?

The VS4 features a tool-free quick-release chamber and hopper collar for easy cleaning.

You can choose between:
- Surface Clean (quick brushing of the burr chamber)
- Full Chamber Removal (removing the lower chamber for deep cleaning)
- Complete Disassembly (removing the outer burr, mounting plate, gaskets, and carrier ring—recommended only when needed)

The manual provides step-by-step instructions for each level of cleaning (Section 6).

8. How often should I clean the grinder?

Light maintenance such as brushing or using the bellows should be done after every grinding session.
A more thorough chamber clean is recommended weekly for regular users, and full disassembly is only necessary if you suspect clogging, oil buildup, or if you are replacing burrs.

9. How do I find the burr zero point?

To determine the burr touch point:
- Ensure the grinder is off and unplugged.
- Remove beans from the hopper.
- Turn the adjustment collar slowly clockwise while listening and feeling for the first point of contact.
- Stop immediately when you hear a faint “chirp” or feel resistance. This is your burr zero reference.

10. Does removing the hopper affect my calibration?

No. The VS4’s design isolates the calibration thread from the hopper thread. This prevents drift, cross-threading, and eliminates the need to recalibrate when removing the hopper for cleaning.

11. How do I avoid motor overload or overheating?

The VS4 includes a built-in thermal protection system.
If the motor or driver becomes too hot:
- The grinder may pause automatically after approximately 20 seconds of no coffee being detected in the grinding chamber.
- Allow the grinder to rest before restarting.

12. Can I grind at the finest setting?

You can grind extremely fine, but never grind at the “0” burr touch point, as this can cause burr damage. Use caution when grinding near the finest end of the scale, especially for Turkish-fine settings.

13. What is the grinder made of?

The body is constructed from precision-machined aluminum alloy with stainless-steel components, ensuring stability, reduced vibration, and long-term durability.

14. What are the physical dimensions and weight?

Dimensions: 161.4 × 97.7 × 337 mm
Weight: approx. 5.27 kg
The stable, compact footprint makes it ideal for home and professional environments.

15. What should I do if grounds are not feeding properly?

Check for:
- A clogged chute (clean with the brush)
- Incorrect grind setting (too fine for the beans)
- Beans stuck in the hopper (shake gently or remove lid)
- If the problem persists, follow the troubleshooting and maintenance steps in Section 6.

16. Can the VS4 grind flavored or oily beans?

Yes, but with caution. Flavored or extremely oily beans may create buildup faster, requiring more frequent cleaning to maintain performance and prevent clogging.

Varia Brewing Limited is an award-winning design company that creates innovative and beautiful coffee brewing products unique to the global marketplace and tested by industry experts to brew the best coffee possible. Varia Brewing was founded in 2018 with the vision of modernising traditional brewing methods and creating new and innovative product solutions. Their focus is on versatility & modernising these traditional brewing methods offers a unique opportunity to engage customers from all coffee cultures and knowledge levels.
Their concept is to transform the brewing experience using advanced technologies and precision engineering to create the best-performing and most beautiful coffee brewing products possible.
Varia products have been designed to enhance the coffee brewing experience for coffee lovers worldwide and encourage experimentation of brew methods enabling the user to gain a greater understanding and appreciation of the coffee experience.
Their passion is to educate people about coffee and to help them improve their brewing skills.