EG-1 Instructions

Read me first

The EG-1 Grinder is for professional use and should only be operated and serviced by trained, qualified personnel. Children should not be allowed to operate or play with the EG-1.

  • Do not operate the EG-1 Grinder without first reading the user manual. Misuse of the EG-1 can result in serious injury or death.
  • Before inspecting, cleaning, or servicing the EG-1 Grinder, unplug the Control Module from mains electricity and wait 5 minutes to allow the unit to fully discharge.
  • Before operating the grinder for the first time, remove the Upper and Lower Funnel to ensure the grind chamber is empty.
  • Do NOT operate the grinder without the Upper and Lower Funnel in place.
  • Do NOT at any time place fingers or foreign objects inside the Exit Spout.
  • Locate the Control Module in a dry, clean and well ventilated area.
  • Only use a verified grounded power outlet with the Control Module. Serious injury or death may occur without proper electrical socket grounding.
  • Do NOT use extension cords, power strips or plug adapters with the Control Module.
  • Do NOT cover or block the ventilation ports on the Control Module.
  • Do NOT locate the Control Module near or next to heat sources.
  • Do NOT spray or immerse the Control Module in liquids of any form.
  • Before operating the grinder, set the Voltage Selector Switch to the correct regional AC voltage.

Table of contents

Getting Started

Packing list

Part names

Setting up the EG-1

Find a suitable location

Inspect the grind chamber

Attach the Bean Dish

Attach the Portafilter Rail armatures

Setting up the Control Module

Control Module initial settings

Plug in Umbilical and Power cords

Grinding

Set initial grind level

Set grind speed

Turn on the grinder

Pour beans into the Bean Dish

Use the Clicker to clear the Exit Spout

The Blind Shaker

Redistribute

Place the Shaker onto the portafilter

Pull the plug

Getting Started

Packing list

Unpack the grinder and compare the contents of the box against the packing list. Keep the shipping box as well as all packing materials. In the event of warranty repairs, the grinder must be returned in the original packaging.

Part names

Familiarize yourself with the individual part names of the EG-1. The instruction manual will refer to these part names throughout.

Setting Up the EG-1 Grinder

Find a suitable location

Remove the EG-1 from the packing material and place the grinder on a strong, stable work surface close to a grounded power outlet. The grinder weights over 13kgs, exercise caution when lifting and moving the machine.

Inspect the grind chamber

As ground coffee exits the burrs, it is collected in the grind chamber before being swept out of the machine. The grind chamber houses the burrs and wipers and is completely enclosed by the Upper and Lower Funnels.

A. Remove the Upper Funnel

The Upper Funnel is attached to the EG-1 grinder using a set of Neodymium magnets. As a safety feature, removing the Upper Funnel requires two distinct and separate motions.

A. Pull Down – using two hands, grasp the Upper Funnel and pull down toward the Arm Mount to release the magnets securing the Upper Funnel to the Burr Collar.

B. Pull Up – continuing to hold the Upper Funnel down and away from the Burr Collar, pull the Upper Funnel upward and away from the grinder.

B. Remove the Lower Funnel

The Lower Funnel is attached to the grinder in the same fashion as the Upper Funnel. Removing the Lower Funnel also requires two distinct and separate motions.

A. Pull Down – using two hands, grasp the Lower Funnel and pull down toward the Arm Mount to release the magnets securing the Lower Funnel to the Burr Collar.

B. Push Away – continuing to hold the Lower Funnel down and away from the Burr Collar, now push the Upper Funnel towards the base and rear of the grinder.

C. Grind Chamber part names

Removing the Upper and Lower Funnels allow full access to the grind chamber for cleaning and routine maintenance.

  • Magnets are used to attach the Burr Collar to both the Upper and Lower Funnels.
  • Alignment pins register the Upper and Lower Funnel positions to the Burr Collar.
  • A set of two Wiper Blades clean the inside walls of the grind chamber of any remaining grounds.
  • Spare wiper blades are included with the grinder and can be replaced when needed.
D. Upper & Lower Funnel part names

The Upper and Lower Funnels enclose the grind chamber. The Clicker, located on the Lower Funnel, is used to clear any remaining grounds left inside the Exit Spout after grinding by flicking the spring loaded arm.

When finished inspecting the grind chamber, re-attach the Upper and Lower Funnels to the grinder.

Do not operate the grinder without the Upper and Lower Funnels in place. 

Attach the Bean Dish

The Bean Dish is the entry point of coffee beans into the grinder. The dish is attached to the EG-1 via a set of Neodymium magnets. A pair of Alignment pins ensures proper positioning of the two parts.

When installing the Bean Dish:

  • Place the tips of both Alignment Pins into the entrances of the Sleeve Bearings.
  • Lower the Bean Dish at a 45° angle towards the face of the grinder.
  • DO NOT force the Bean Dish onto the pins, the Bean Dish will slide into place with no resistance when the pins are correctly aligned.
  • When removing the Bean Dish, reverse the process and pull the Bean Dish away from the body of the grinder at a 45° angle.

Remove the Bean Dish before moving or transporting the grinder.

Attach Portafilter Rail armatures

The Portafilter Rail system is a hands free, user configurable set of armatures designed to hold grind receptacles such as portafilters or the Blind Shaker. Rather than tying the user to a single workflow, the rail system accommodates a variety of workflows.

A. Portafilter Rail armature orientation

The Portafilter Rail armatures can either pivot or lock, allowing for multiple user configurations. Depending on the vertical orientation when installing, the armature can either pivot downward while being locked in a upward direction or pivot upward while being locked in a downward direction.

If the armature is slotted into the rail with the armature button on the top, the armature will pivot or springboard down, but will be locked or unable to rotate in the upward direction.

If the armature is slotted into the rail with the armature button on the bottom, the armature will lock or be unable to rotate in the down direction, but still be able to pivot or springboard upward.

B. Portafilter Rail system modes of operation

The Portafilter Rail system can be configured to operate in 3 different hands free modes using either the Blind Shaker or a portafilter as a grind receptacle.

Configuration 1: Blind Shaker with portafilter Rail Fork and Rail Ring

Configuration 1 is our recommended method for operating the EG-1. Stray grounds and the effects of static are minimized using this setup.

Depending on user preference, the orientation of either the Rail Ring or Rail fork can be inverted, allowing the barista additional flexibility of workflow. In the current configuration, the Ring can only pivot downward and the Fork upward effectively locking the container into place. By switching the orientation of the Fork, the user can pivot the armature downward allowing for easier mounting and un-mounting of the Blind Shaker.

Configuration 2: Blind Shaker with solo Rail Ring

For users that prefer the minimalist approach. Adjust the Rail Ring until the stem of the Blind Shaker is comfortably close to the spout of the Lower Funnel. In the illustration, the Rail Ring pivots or springboards down, facilitating mounting or un-mounting of the Blind Shaker.

CAUTION: DO NOT ALLOW THE STEM OF THE BLIND SHAKER TO ENTER THE EXIT SPOUT OF THE GRINDER. SERIOUS DAMAGE MAY OCCUR.

Configuration 3: Portafilter with Ring Funnel, Rail Ring and Rail Fork

The EG-1 is a direct path grinder, with the grounds barely coming in contact with the machine. The ground quality can best be described as fluffy. When grinding directly into a portafilter, the volume of grounds exiting the grinder often exceeds the volume of the basket prior to tamping. Double or triple shot doses will require the use of the included Ring Funnel.

C. Remove Portafilter Rail Cover

The Rail Armatures slot into the neck of the grinder and can be vertically adjusted. The rail slot is accessed by removing the Portafilter Rail Cover. The cover is held in place with a set of Neodymium magnets and alignment pins. To remove the cover, grasp the part and pull directly away from the neck of the grinder.

D. Attach Rail Armatures

Relative to the desired configuration, insert either the Rail Ring or the Rail Fork into the slot in the neck of the grinder. Consider the vertical orientation of the armature prior to installation, as the orientation determines the direction of the pivoting action.

Depress the armature button fully before inserting the armature into the slot. Once seated in the slot, continue depressing the armature button while moving the Rail Ring upward. To adjust the vertical position of the armature, depress the armature button fully before moving.

Exercise care when installing. The rubber brake pads on the inside faces of the locking mechanism can be easily damaged.

Repeat the installation process with the Rail Fork.

Re-attach the Rail Cover to the grinder and make final adjustments to the vertical position of both armatures.

Setting up the Control Module

Control Module initial settings

Before plugging in or operating the grinder for the first time, ensure the Control Module is set to the lowest setting (about 200 RPM).

  1. On the front face of the Control Module, rotate the Speed Control Knob completely counter clockwise.
  2. On the rear face of the Control Module, set the Voltage Selector Switch to the correct voltage for your region. If in doubt as to the correct voltage setting, please contact a qualified electrician for assistance. Damage to the unit can occur if the Voltage Selector Switch is incorrectly set.
  3. Ensure the Main Power Switch on the Control Module is set to OFF.
  4. Ensure the Main Power Button on the base of the grinder is set to OFF.

Plug in Umbilical and Power cords

  1. Rotate the outer barrel of the Circular Connector till both sets of locking tabs are correctly aligned.
  2. Align the locking tabs of the Circular Connector to the slots in the Motor Control Port.
  3. Attach the Umbilical cord to the Control Module. Lock the connector in place by rotating the outer barrel clockwise.
  4. Plug the power cord into the Control Module, and then into a wall socket.

Grinding

Set initial grind level

A. Lift Locking Ring

By rotating the Locking Ring clockwise or counter clockwise, the user can set the fineness or coarseness of the grounds. The Locking Ring has 100 marks per rotation and allows for 5µm (micron) adjustments per mark.

The current grind setting is indicated by the Center Mark on the Burr Collar.

  1. Lift the locking ring away from the Burr Collar.
  2. Note that the alignment pins on the top of the Burr Collar mate into registration holes located on the bottom of the Locking Ring.
B. Rotate Locking Ring left

While continuing to lift the Locking Ring away from the Burr Collar, rotate the Locking Ring to the left. When you begin to feel resistance, stop turning. This is your zero point. Note the number shown above the Center Mark.

C. Rotate Locking Ring right

While continuing to lift the Locking Ring away from the Burr Collar, rotate the Locking Ring to the right approximately 50 marks or 5 digits.

D. Lower Locking Ring

Line up the alignment pins with the holes in the bottom of the Burr Collar then lower the Locking Ring into place. Ensure the bottom of the Locking Ring sits flush with the top of the Burr Collar.

DO NOT OPERATE THE GRINDER WITHOUT THE LOCKING RING COMPLETELY ENGAGED ON THE ALIGNMENT PINS. SERIOUS DAMAGE TO THE GRINDER MAY OCCUR OTHERWISE.

The current grind setting can be used as an initial starting point for espresso. To grind coarser, rotate the Locking Ring to the right, and use a higher number. To grind finer rotate the Locking Ring to the left, and use a lower number. A good rule of thumb is (bigger numbers = bigger particles) while (smaller numbers = smaller particles).

DO NOT ADJUST THE GRIND MECHANISM WHILE THE GRINDER IS RUNNING. SERIOUS DAMAGE TO THE GRINDER MAY OCCUR OTHERWISE.

Set grind speed

In a feature not commonly found in commercial grinders, the EG-1 has variable speed control. Different beans and roasts produce different results when ground at different speeds. We recommend setting the grind speed to between 600~800 RPM as a starting point.

To note: grind speed has an effect on the speed of the extraction. Slower grind speeds often result in longer extraction times. If changing from a higher to lower RPM, the grind should change from finer to coarser to compensate. Getting more over spray or beans taking longer to clear the grinder? Reduce your grind speed.

When dialing in the grinder, we recommend keeping as many variables constant as possible . Do not change grind speed, dose weight, or grind coarseness settings simultaneously.

  1. Turn the Main Power Switch on the back of the Control Module to ON.
  2. Push the Power Switch located on the base of the EG-1 grinder to ON. The button LED will light up.
  3. Slowly rotate the Speed Control Knob on the front of the Control Module clockwise to increase the RPM of the grinder.
  4. When the desired speed has been achieved, push the Power Switch to turn OFF the grinder.

Turn on the grinder

When dialing in the grinder, we recommend using doses of a consistent weight. Have a set of pre-weighed shots prepped and ready to grind. It is best to keep these as consistent as possible (<0.2g variation)

The EG-1 can be operated from either a hot (running) or cold (not running) start. With lighter roasts, higher volumes or tougher beans, we recommend a hot start which reduces the torque load on the motor.

  1. Insert the Blind Shaker into the Rail System.
  2. Push the Power Switch located on the base of the EG-1 grinder to ON.

Pour beans into the Bean Dish

When ready, pour the coffee beans into the Bean Dish.

Use the Clicker to clear the Exit Spout

Once the grind is complete, turn OFF the grinder. Flick the Clicker arm to clear the Exit Spout.

Remove the Blind Shaker from the grinder and place the cap on top of the Shaker.

DO NOT AT ANY TIME PLACE FINGERS OR FOREIGN OBJECTS INSIDE THE EXIT SPOUT.

The Blind Shaker

Redistribute

We’ve noticed that most grinders benefit from the redistribution of coffee grounds after grinding. Some stir, some pour from cup to cup, we prefer to shake. The EG-1 includes our own patented Blind Shaker.

  1. Remove the Blind Shaker from the grinder and put the cap on the top of the Shaker.
  2. Grasp the shaker in one hand while holding the cap in place with the index finger.
  3. Gently shake three to four times in a horizontal direction.
  4. Holding the shaker vertically, shake one more time to level the grounds.

Place the Shaker onto the portafilter

Remove the lid of the shaker.

With the left hand, rest the base of the portafilter on the work surface and with the right hand, place the Blind Shaker onto the basket.

Pull the plug

In a single motion, pull and twist the Plug releasing the grounds into the basket. If you wish to level the grounds even further, you can hold the portafilter and blind shaker together and shake horizontally to re-level the grounds.

Craig’s 5 second technique for dosing with the Blind Shaker:

  1. Holding the portafilter handle in the left hand, rest the bottom of the naked portafilter on the work surface.
  2. With the right hand, place the shaker on top of the portafilter basket, centering the shaker until the flange engages with the basket to ensure both are in place.
  3. Swap the right hand with the left to hold the shaker.
  4. With the right hand remove the cap of the shaker and place on the work surface.
  5. With the right hand and in a single motion, pull and twirl the plug to remove and drop the grounds into the portafilter.
  6. Grab the portafilter with the right hand and with the left hand still on the shaker, gently tap both on the work surface to clear and level any remaining grounds. A slight horizontal shake of both the portafilter and shaker can also be performed to level the grounds as necessary.
  7. Tamp and pull.
  8. Serve with a smile.