The Key
83mm Conical Burr Electric GrinderOverview
The original KEY integrated an 83mm conical burr set into the most compact, space-saving design possible.
The Mk ii marks an evolutionary step in the development of the KEY by introducing significant usability and workflow upgrades while maintaining the same footprint as the original version.
The burrs and mount define the width of the Key, so it takes up a fraction of the space required by grinders with burrs only a fraction of the size.
NOTE: Shipping mid-late October.
Key Features
Key Features
Created by the engineers and designers behind the iPod nano, we took great care to pack a lot into a small package.
- Built-in Cleaning Brush with Replaceable Head
- Easy RPM Adjustment Knob
- Compatible with both Standard (49mm & 58mm) and Magic (58mm) Tumbler Configurations
- Magnetic Tumbler Centering on Hardwood Landing Pad
- Tumbler configurations are interchangeable with our HG-2 Hand Grinder
83mm Burrs
83mm Burrs
The KEY is built around the massive 83mm conical burr set. We source our burrs exclusively from Mazzer, but apply our own unique secondary processes to partially season them so they are usable out of the box, and then seal in the edge with a life-prolonging and completely food safe TiN coating. Perfect for the single-dosing café or home.
Items Included
Items Included
Every KEY Mk.II Grinder ships with the following in the box:
- KEY Grinder Main Unit (SNOW or ONYX)
- No fuss plug-in-anywhere-in-the-world (90-240v) C13-type power cable (US, AU, EU, UK styles only).
- Magic Tumbler (Patented, fits 58mm). Standard Tumbler (fits 49mm & 58mm) + Funnel sold separately.
- Air blower bellows for cleaning
- RDT Bottle
- Stainless Dosing Cup
- Hex wrenches for assembly and maintenance
Availability
Availability
The KEY Mk.II is expected to ship in Mid-October, 2023.
Recommended Pairings
BEAN CELLAR® Glass
![Teak Standard Unifilter [teak-standard]](http://weberworkshops.com/cdn/shop/products/Unifilter_Teak_Standard_5778c8b6-4e99-4c54-9b9a-49651ddf40ec_600x.png?v=1669875807)
DEBUG image.liquid src://weberworkshops.com/cdn/shop/products/Unifilter_Teak_Standard_5778c8b6-4e99-4c54-9b9a-49651ddf40ec_600x.png?v=1669875807 file: asset: size: product:ProductDrop _src:
DEBUG image.liquid src://weberworkshops.com/cdn/shop/products/Unifilter_Teak_Standard_5778c8b6-4e99-4c54-9b9a-49651ddf40ec_600x.png?v=1669875807 file: asset: size: product:ProductDrop _src:
Maximize your espresso game also
Eyes on the prize
![Key Mk.II Onyx Front View [onyx]](http://weberworkshops.com/cdn/shop/files/onyx-front_1500x.png?v=1695270203)
![Key Mk.II Onyx Right View [onyx]](http://weberworkshops.com/cdn/shop/files/onyx-right_1500x.png?v=1695270203)
![Key Mk.II Onyx Back View [onyx]](http://weberworkshops.com/cdn/shop/files/onyx-back_1500x.png?v=1695273382)
![Key Mk.II Onyx Left View [onyx]](http://weberworkshops.com/cdn/shop/files/onyx-left_1500x.png?v=1695273382)
![Key Mk.II Snow Front View [snow]](http://weberworkshops.com/cdn/shop/files/snow-front_1500x.png?v=1695272909)
![Key Mk.II Snow Finish Right View [snow]](http://weberworkshops.com/cdn/shop/files/snow-right_1500x.png?v=1695272909)
![Key Mk.II Snow Back View [snow]](http://weberworkshops.com/cdn/shop/files/snow-back_1500x.png?v=1695270203)
![Key Mk.II Snow Left View [snow]](http://weberworkshops.com/cdn/shop/files/snow-left_1500x.png?v=1695270203)
See KEY in Action
The Key's burrs and mount define its width, giving it the punch of Goliath with the footprint of David. That makes the Key the most precise, repeatable, and cleanable conical grinder in the world.
Mk. II UPDATES
50% Increased Torque
The Mk. II boasts a massive 50% increase in torque from its predecessor, achieved through a combination of a new gearing system and higher current power supply. The Mk. II can effortlessly grind through extremely light roasts and even green coffee, though we don't recommend it, at fine settings, and at the lowest RPM (30 RPM).
Magnetic Dust Cover
A redesigned, knurled cover sits atop a 30% larger loading chamber, with a ~40g capacity. The cover is made up of two sides that can lift apart, or be magnetically held above the loading chamber while beans are added. Once loaded, the cover easily drops back down into place to prevent any coffee fragments from bouncing out.
Customizable Wood Accents
The Key Mk. II's wooden platen and brush handle are now customizable. The Mk. II ships with Oak wood accents, but the accents can easily be replaced for Walnut or Teak to match near any interior design.
Integrated Bean Feeder
The Bean Feeder mechanism is now integral to the design, ensuring even loading rates throughout the grind, critical for perfect single-dosing. The mechanism now houses a bottom bearing to maintain factory alignment without needing adjustments.
Updated Magic Tumbler™
We've updated the Magic Tumbler for the Key Mk.II. The updated design features anti-static plates, and an additional, replaceable paper wiper to ensure minimal grind retention, well below 0.1g. In tests, we've found retention to be below the range most coffee scales are capable of measuring.
83mm Mazzer Conical Burrs
83mm Mazzer burrs, factory pre-aligned. We partially pre-season them and lock in the longevity with a food-safe TiN coating. Rated for 5,000Kg, or several lifetimes of delicious coffee.
Detail Images
83mm Mazzer Conical Burrs
83mm Mazzer Conical Burrs
83mm Mazzer burrs, factory pre-aligned. We partially pre-season them and lock in the longevity with a food-safe TiN coating. Rated for 5,000Kg, or several lifetimes of delicious coffee.
Integrated Cleaning Brush
Integrated Cleaning Brush
Solid oak handle, solid brass ferrule to protect the bristles when they go back into the storage cubby, and a hidden magnet to hold it in place. Unparalleled details that show your dedication to cleanliness. The brush head screws out and can be replaced individually.
Magic Tumbler
Magic Tumbler
Our patented mechanism for automated WDT grounds homogenization. Zero overspill, ready to drop into your espresso portafilter, Aeropress, Moka pot, or pour-over filter.
5 micron stepped adjustment
5 micron stepped adjustment
Simple stepped adjustment easily takes you from Turkish-fine to v60 ready.
Technical Specifications & Details
01
Dimensions & Specs
Dimensions & Weight (Product)
248mm x 109.2mm x 349.6mm, 9Kg
(9.76″ x 4.30″ x 13.76″)
Dimensions & Weight (Shipping Box)
41 x 61 x 24cm, 14Kg
Input Voltage
90-240V (Globally compatible)
Power
350W Max
Power Connector
C13 Adapter - Compatible with any plug type
(Ships with compatible plug for your country as available)
02
Magic Tumbler Wiper Installation
The Key with Magic Tumbler will arrive with the Magic Tumbler installed, but not the integrated Weiss Distribution Technique (WDT) wiper. We've put together the following video to help with installation. You'll need the included 5mm Hex Key included in the box, the included stainless steel retaining washer, the wiper itself, and a bit less than 5 minutes.
03
Maintenance and Cleaning
The KEY has been designed from the start to be both simple and easy to clean. No tools, and a full clean in seconds, not hours.
The upper funnel can be lifted away to reveal the top of the burr set. A few strokes with the brush that's always ready to deploy removes any stray coffee grounds. The lower funnel is held in place by 12 strong rare earth magnets and can be removed with a simple twist of the wrist. Once exposed, the lower burrs can be brushed clean in seconds.
We believe that a good product is a clean product, and designing them to be easy to clean is fundamental to improving the quality of your coffee and the hygiene of your countertop.
04
Key Workflow
Daily use, workflow, cleaning, and maintenance of the KEY Coffee Grinder.