Weber KEY Coffee Grinder

1 - Placement

Find a flat, dry counter space with access to a power outlet. The KEY is designed for use in 100V - 240V regions without needing a separate transformer. It uses a standard C13 style power cable, similar to a computer, which can be purchased locally if needed.

2 - Remove from box

Using both hands, carefully pull the KEY straight out of the packaging. Use caution as the unit is heavy.

3 - Attach Magic/Static Wiper

Lay the grinder on its side on a clean towel or cloth. Use the included 5mm hex key to remove the screw holding the lower axle cap in place. Remove the axle cap and store it safely. You may need to pour some coffee beans into the funnel and use a rubber glove to hold the shaft securely enough to remove the screw. Tapping the end of the Allen key can also help. Re-use the screw, threading it through the washer and wiper, then securely tighten it with the 5mm hex key.

Troubleshooting Stuck Bolt: If the bottom bolt is stuck and cannot be removed (the shaft turns with it), remove the gearbox cover and place a metal rod (or Allen key) through the hole in the shaft to lock it in place.

Warning: Shut down mains power before removing the gearbox cover. The gears can be a pinch-point for fingers when exposed.

Choose Magic Tumbler or Standard Tumbler Wiper:

The magic wiper has a replaceable stirring rod in case it gets bent or damaged. Push out the insert block on the backside of the wiper (this requires removing the wiper from the machine) to swap the stirring attachment.

4. Choosing and placing tumbler

Magic tumbler: Ensure the tumbler plug is properly seated inside the magic tumbler, then attach the magic tumbler into the magnetic mount. Be careful not to damage the static wiper or the stirring rods. This process becomes easier with practice.

Standard tumbler: Attach the lower funnel into the magnetic mount. Ensure the tumbler plug is properly seated inside the standard tumbler. Center the tumbler directly beneath the lower funnel; it will self-center using the magnets.

Magic Tumbler compatible with:

• 58mm portafilter
• MOKA pot
• Pour-over
• etc.

Standard Tumbler compatible with:

• 58 or 49mm portafilter
• Pour-over
• etc.

5 - Plug in unit

Use the included power cord. An adapter or an alternative C13 style cable may be needed depending on your country, but a transformer should not be required as the unit works with 100V-240V (50 or 60Hz) electrical service.

6 - Power on mains

This is the switch located on the back of the unit, next to where the cord plugs in.

7 - Adjust the RPM level

Turn the knob counterclockwise to reduce the speed to the 50 - 70 RPM range, which is a good starting point.

8 - Using the On/Off Button

When the burrs are spinning, the button will illuminate and remain depressed. Do not leave the grinder ON/Spinning for excessive periods of time.

9 - Adjust the Grind

Test grind a small amount of coffee to verify the initial setting. The KEY ships pre-set to a reasonable grind setting for espresso. You will need to make appropriate adjustments for your specific coffee beans and brewing method. Adjustments are made by lifting the locking ring and turning it. Larger numbers indicate coarser particles (clockwise = coarser). Some coffee remnants may remain in the grinder from shipping, as approximately 200g of coffee is test-ground with each unit before it is shipped. While the unit is cleaned, a small amount of coffee may remain.

10 - Grinding Coffee

Once you are satisfied with the grind setting, you can add your coffee dose into the Bean Dish. You can use either a "Hot Start" (where the grinder is already on/spinning before the beans are introduced) or a "Cold Start" (where the beans are added before turning the grinder on). Weber Workshops typically recommends using a Hot Start when operating the KEY. A typical dose takes around 20-30 seconds for 20g of coffee to finish grinding, depending on the grind size and RPM setting.

11 - Power Off

It is recommended to power down the unit at the mains switch overnight for cafes, or during any prolonged period of non-use at home.

12 - Cleaning the Grinder

Use the included brush to clean the burr, funnel, base-plate, etc. To replace the brush in its base, first pull the brass outer sleeve to cover the bristles before re-inserting it. Upon re-insertion, the cap will be pushed back for immediate use upon removal.