The Varia VS3 Gen 2 is a zero-retention, single-dose coffee grinder
with 38mm conical "Supernova" burrs, designed for precision and a fast,
clean workflow in both espresso and filter brewing.
The grinder aims to minimize waste with its low retention design,
making it ideal for switching between different beans without purging.
Zero Retention:
The 76.5° slope geometry in the grinder's body, along with its design, significantly reduces retention, keeping it below 0.1 grams per 10-gram dose.
Single-Dose Grinding:
The VS3 is built for single-dosing, meaning you grind the exact amount of beans needed for a shot, eliminating waste and streamlining your workflow.
Stepless Micrometric Adjustment:
The hopper acts as a dial, providing continuous, precise adjustments for both espresso and filter grinds, with each turn resulting in a very small burr shift (0.01mm or 10 microns).
Upgraded Internal Components:
The Gen 2 features an all-metal gearbox and drive assembly, a more stable one-piece outer burr set, and a 100W DC motor running at 190 RPMs for improved speed and consistency.
Premium Materials:
The body is constructed from durable CNC-machined aluminum alloy with a high-grade, scratch-resistant powder coating.
Magnetic System:
The lid and dosing cup feature magnets for convenient attachment and secure handling during use.
Clean Workflow:
The low retention and efficient expulsion of grounds make it easy to switch between different coffee beans without needing to discard or "purge" the grinder.
Sleek Aesthetics:
With its compact, stylish design.
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Burrs - a bit confusing - there are 5 types
I'm using the standard burr set.... Supernova Stainless Steel.
These are 38mm 6-core conical burrs. HRC58 hardness rating.
The standard set of burrs is made with high nitrogen 420 stainless steel.
these burrs tend to struggle with lighter roasts when grinding for espresso, but do a good job with medium and dark roasts. I usually hot start, and the grinder has never stalled on me.
Supernova Gold Titanium
38mm conical burr
420 stainless steel base and titanium coating, Supernova is designed for espresso grinds. The coating increases hardness to HRC60, enhances sharpness and prevents overheating. Compared to standard burrs, they offer better particle distribution, resulting in a balanced profile with medium body and clarity.
Supernova Black Titanium
I don't think there is any difference between the black and gold supernova titanium burr set
HRC60
38mm, 420 stainless steel base and titanium coating
Hypernova (Iridescent) titanium
HRC 65
38mm, 420 stainless steel base and titanium coating
better particle distribution at espresso sizes,
resulting in an extraction with increased clarity and a more balanced profile.
I think the burr shape is the same as both Supernovas, but hardness has increased.
Hypernova ULTRA (Plasma) Titanium
These have pre breaker crushing teeth which improve grinding efficiency and consistency at the top of the range and hardness has increased.
HRC 67
38mm, 420 stainless steel base and titanium coating
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Grinder adjustments for Espresso:
Many grinders have a 30-micron increment that can be too coarse for dialing in espresso.
In general, the lower the the microns per click, the better your grinder will be for espresso.
By increasing the threads on the adjustment axle, we can increase the number of available adjustment settings thus making it easier to achieve the very precise grind sizes needed for espresso.
A good grinder adjustment for espresso is a step size that's between 5 and 15 microns per click to allow for precise dialing in the shot. Though some grinders are stepless, offering infinite adjustment. The best adjustment size depends on the specific grinder and the sensitivity of your espresso setup, as a single click can significantly affect your shot time and flavor.
Examples of Grinder Adjustments
Jmax: 8.8 microns per click
Comandante C40: 25-30 microns per click
Comandante C40 with Red Clix: 15 microns per click
Timemore C3: 83 microns per click
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