Conical Burr Coffee Grinder
Operations Manual
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hank you for purchasing the Virtuoso PRECISO Conical Burr Coffee
Grinder. With the Virtuoso PRECISO, it’s now easier than ever to make
professional quality coffee, whether at home, the office, or your café.
T
Below are detailed descriptions of the features that make the PRECISO stand
out from other grinders in its class.
Precise, commercial-quality burrs:
Manufactured in Italy, the PRECISO’S burrs are of the same material and du-
rability as the industry’s highest-quality line of commercial conical burr coffee
grinders. The burrs rotate slower than those of most grinders minimizing the
heat in the beans, to preserve the flavor.
Innovative grind adjustment system:
Macro and Micro adjustments are quickly and repeatedly achievable with this
new precise adjustment system. The range of grind and accuracy of the set-
tings are truly impressive. The PRECISO has over 400 distinct settings of grind
from Espresso to French Press. An innovative calibration system allows all the
manufacturing tolerances of the grinder to be eliminated, resulting in identical,
accurate performance of each grinder. Furthermore the PRECISO’S ring burr
is supported on three points, providing a stable platform for a more accurate
grind. Whether in commercial, semi-professional or personal applications,
exact grind is imperative to a high-quality extraction and, therefore, a better cup
of coffee!
Efficient motor:
The PRECISO houses a powerful DC motor that produces more than four times
the output of a standard AC motor found in most grinders in this class. The
motor spins at less than one-third the speed, making it much quieter and lower
in pitch. Extremely well-made, the motor is built to handle long-duty cycles. In
addition, it possesses a thermal safety device that protects the motor from over-
heating and automatically resets once the motor cools.
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Table of Contents
Introduction ............................................................................................. 1
Table of Contents .................................................................................... 2
Parts Identification .................................................................................. 3
Safety Information.................................................................................... 4
Initial Operation ....................................................................................... 5
SettingtheGrindAdjustment......................................................................5
Adjustable Self Timer .................................................................. 6
Front Mounted Pulse Button ....................................................... 7
™
PortaHolder Installation ....................................................... 7
Care and Cleaning .................................................................................. 8
Cleaning the Housing and Hopper .............................................. 8
Cleaning the Burrs ...................................................................... 8
Remove the Ring Burr ................................................................ 8
Cleaning the Ring Burr ................................................................ 9
Replacing the Ring Burr ............................................................. 9
Replacing the Bean Hopper ....................................................... 9
Cleaning a Clogged Grinder....................................................... 10
Automatic Cleaning ...................................................................11
Warranty and Service ............................................................................ 12
Notes ......................................................................................................13
BEFORE USING YOUR GRINDER
Prior to using your PRECISO grinder for the first time you should wash
the bean hopper and ground coffee bin in warm soapy water. See the
section on Care and Cleaning for instruction on how to remove and rein-
stall these parts.
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Parts Identification
Hopper Lid
Whole Bean Hopper
MACRO Grind Setting Indicator
MACRO Grind Adjustment Scale
MICRO Grind Adjustment
Pulse Button
Adjustable Self-Timer
Ground Coffee Bin
Grind Adjustment Ring
Grind Adjustment Tab
Center Cone Burr
Silicone Seal (cutaway)
Removable Ring Burr
Burr Alignment and Lifting Tabs
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Important Information
Please read the information below very carefully. It contains important
tips for the use, the safety and the maintenance and care of this appli-
ance. Please keep these operating instructions for future reference.
•
Use only with AC current and the correct voltage. See the label on
the base of the grinder to determine the correct voltage.
Only clean the grinder housing with a dry or slightly damp cloth.
Do not use this grinder for anything other than its intended use (i.e.
grinding whole roasted coffee beans).
•
•
•
Disassemble your grinder only as directed in the care and cleaning
section of this manual. If you cannot remedy a malfunction check
further assistance e-mail us at [email protected] or call us at
425-641-1245.
•
Baratza will not accept any liability for damage or injury if the grinder
is used other than for its intended purpose or is improperly operated
or repaired. All warranty claims will be void.
For Your Safety
•
Do not operate the grinder with a damaged cord or plug, or if the
grinder malfunctions.
•
•
Do not leave your grinder unattended while turned ON.
Shut off and unplug the grinder from the electrical outlet when not in
use and before cleaning.
•
•
•
To unplug, grasp plug and remove from the outlet-never pull on cord.
Keep your grinder out of the reach of children.
Do not immerse the grinder, plug or cord in water or any other liquid.
Caution
Always unplug the electrical supply cord prior to cleaning the grinder.
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Note:
You may notice some rust on the burrs. This is normal and will disappear
after a small amount of coffee has been ground. To remove the rust and
season the burrs, grind 1/4 pound of coffee and discard.
Initial Operation
See the bottom of the grinder to determine the proper voltage for the
grinder. Place the PRECISO on a level surface and plug into a correct
voltage, AC outlet only. Remove the lid from the hopper by lifting off.
Pour the desired quantity of roasted whole coffee beans into the hopper
up to a maximum of 8 oz. Replace the lid. Ensure the ground coffee bin
is fully inserted.
Setting the Macro and Micro Grind Adjustment
Slowly rotate the bean
hopper clockwise or
counter clockwise to
align the indicator on
the bean hopper with
the desired number
setting on the Macro
grind scale. Select the
correct grind for the
brew process you are
using. (Note: when-
ever moving the Macro
adjustment to the left(finer direction), the grinder should be running.)
Set the Micro adjustment lever to the middle of the scale. Grind a small
amount of coffee. Check the particle size. If the particle size is close to
what you desire, now use the Micro lever to “fine tune” your grind size (A
is finer, K is coarser). If the particle size needs a big change then adjust
the Macro adjustment to a new position then fine tune with the Micro
lever. The full range on the Micro scale is equal to one “click” or position
on the Macro scale. With both the hopper and the micro adjustment,
moving right (counter-clockwise) produces a bigger particle size and left
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(clockwise) produces a smaller particle size. The actual grind size for a
particular setting will vary depending on many factors, including: degree
of roast (light vs. dark), freshness, humidity, type of bean, oil content, etc.
With use, you will determine the setting that is right for your taste, brew-
ing style and your favorite beans.
Setting
1 to 14
Type of Coffee
Espresso
Filter / Drip
Press
Grind
Fine
16 to 32
34 to 40
Medium
Coarse
Note: Partially ground coffee beans may remain between the burrs after
the grinder is turned off, adjusting the grind may be easier when the
grinder is running. Avoid running the grinder at very fine settings without
beans as it can damage the burrs.
Adjustable Self Timer
The PRECISO is equipped with a 60 sec-
ond timer switch. Each segment around the
timer represents about 10 seconds of run
time. The grinder switches off automatically
once the time has elapsed. If you want
to interrupt grinding
before the time has
elapsed, simply turn
the timer switch coun-
terclockwise until the grinder switches off.
The quantity of ground coffee you need depends on
the type of bean, coarseness of the grind, brewing
method and personal taste. With use, you will find
the most suitable settings for your personal taste.
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Front Mounted Pulse Button
For short duration grinding, the PRECISO is
equipped with a front mounted pulse button. It can
be used for grinding directly into an espresso-brew-
ing basket. Remove the grounds bin and position
the espresso-basket inside the grinder directly
below the pulse button or position the espresso
basket in the Portaholder which is included (see
photo). Push and hold the pulse button to grind.
Grinding will stop when the button is released.
PortaHolder™ Installation
™
Insert the PortaHolder into the grinder. Then in-
™
sert your porta filter into the PortaHolder by tipping
the basket down so the lip of the porta filter slides
under and gets hooked by the hook bracket at the
™
top rear of the PortaHolder while the base of the
basket is supported by the two metal fingers that
™
extend from the PortaHolder If the porta filter bas-
ket is not horizontal in the holder, remove the screw
and move the bracket higher or lower in order to
level the portafilter basket.
To use, insert your porta filter into the PortaHold-
™
er . Turn the timer to the desired time. The grinder
will run for the time set and stop automatically.
Note: Use caution not to overfill the porta filter. If you overfill the filter
coffee will back up and jam your grinder.
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Care and Cleaning
Cleaning the Housing and Hoppers
Switch the grinder off and remove the plug
from the power supply. Remove any remaining
beans from the bean hopper (it may be easiest
to tip the grinder over and pour the beans into
a bowl.). Remove the hopper by twisting it in a
counterclockwise direction as far as it will turn,
and then lift the bean hopper from the housing.
Wash the hopper, hopper lid, and ground coffee
bin in warm soapy water, rinse and dry.
Caution
Do not put the bean hopper, hopper lid, or ground cof-
fee bin in the dishwasher. Handwash only.
Do not immerse the grinder housing in water.
Cleaning the Burrs:
If the grinder is used daily, the burrs should be
cleaned every few weeks. Cleaning enables the
burrs to achieve the most consistent grind pos-
sible. Cleaning also removes coffee oils which
will stale and degrade the flavor of the ground
coffee. Do not wash the burr.
Remove the Ring Burr
Pull the silicone seal off the top of the ring Burr.
Remove the ring burr by lifting it straight up out
of the grinder by the lifting tabs.
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Cleaning the Ring Burr
Use the bristle brush (included with your grinder)
to remove any loose coffee residue on the ring
burr and the center cone burr mounted within the
motor housing. Wash the silicone seal in warm
soapy water and dry.
Replacing the Ring Burr
Ensure that the black adjustment ring is rotated
counterclockwise as far as it will go. Replace the
burr by lining up the red tab on the burr with the
rectangular cutout on the black adjustment ring.
Wiggle and push down firmly on the ring burr to
ensure that it seats properly.
After replacing the burr, replace the silicone seal
by lining up the two slots in the silicone seal with
the small tabs on the top of the ring burr and slide
the seal onto the ring burr.
Replacing the Bean Hopper
To replace the bean hopper, line
up the two small tabs on the base
of the hopper with their respective
slots in the top of the grinder hous-
ing and insert the hopper into the
grinder. Once the hopper is in place
rotate it clockwise to your desired
grind setting.
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Clearing a Clogged Grinder
If your grinder is not dispensing coffee normally, it could be clogged
with coffee powder. This can happen if the grounds bin or portafilter are
allowed to overfill and ground coffee gets backed up into the grounds
chute and grinding chamber. It can also happen with the build up of cof-
fee powder over time.
Cleaning the Grounds Chute:
To clear the grinder remove any beans that remain
in the bean hopper, then remove the bean hop-
per. Also remove the ring burr and the grounds
bin. Check to see if the grounds chute is clogged
by looking at the exit of the grounds chute which
is located at the top of the recess that holds the
grounds bin (see photo # 1). If clogged, remove
the coffee grounds with a stiff piece of wire such
as a straightened jumbo paper clip and your
cleaning brush.
Photo # 1
Cleaning the Paddle Wheel:
Looking at the grinder from the top you’ll see the
cone burr in the center and a paddle wheel with
eight fins that rotates at the base of the cone burr
(see photo # 2). During grinding these fins push
the ground coffee out of the grinding chamber.
Ground coffee can get tightly packed between the
fins. Use a straightened jumbo paper clip (or simi-
lar) to remove any coffee powder lodged between
the fins. Once all the coffee is removed, make
sure that all eight fins are present and reach to the
Photo # 2
wall of the grinding chamber. If the paddle wheel is broken or warn, go
the paddle wheel.
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Cleaning the Grinding Chamber Exit Port:
Turn the grinder so the back is facing you, then
rotate the black adjustment ring counter clockwise
until it stops. The rectangular cutout on the ring
should now be at the 11 o’clock position (see pho-
to # 3). Directly below the cutout, at the bottom of
the chamber is the exit port leading to the grounds
bin. If the exit port is clogged, clear it with the
jumbo paper clip and brush. Make sure the exit
port and grounds chute are clear all the way to the
Photo # 3
can help complete the cleaning.
exit of the grounds chute. A blast of compressed air
Automatic Cleaning
Note
The use of Grindz will NOT clear a clogged grinder, this can only be
done by following the steps in “Clearing a Clogged Grinder”.
™
A thorough, fast, and easy cleaning can be accomplished using Grindz
grinder cleaner. Grindz is a product designed to dislodge coffee par-
™
ticles and absorb and remove odors and coffee oil
™
residue. Simply place one packet of Grintz into
the empty grinder hopper. Adjust grind setting
to 20, and operate as if grinding coffee beans
™
until all of the Grindz has been ground. Once
complete, we recommend passing about 4 Tbs. of
™
coffee through the grinder to remove any Grindz
residue. Discard the ground coffee. For informa-
™
™
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Warranty and Service
Length of Warranty: One-year from date of purchase.
United States and Canadian Warranty Information
If your grinder fails within one year: e-mail: [email protected] or call
425-641-1245. Baratza will deliver an identical or comparable replace-
ment grinder to your door, free of charge, and arrange to have your
“failed” grinder returned to us.
When you receive your replacement grinder, please use the carton and
packing material and the return shipping label supplied to return the
“failed” grinder to us. Also, please include your name, address and tele-
phone number.
International Warranty Information
side the United States.
Proof of Purchase and Product Registration
able us to contact you in the unlikely event of a product safety notification
and assist us in complying with the provisions of the Consumer Product
Safety Act. The serial number is located on the bottom of the grinder.
Please keep your sales receipt that shows the date of purchase and
complete the following for your personal records:
Serial Number (located on bottom of grinder): ____________________
Date Purchased: _____________Store:__________________________
For repairs or parts contact
Baratza LLC
3923-120th Ave. S.E.
Bellevue, WA. 98006
425-641-1245
e-mail: support@baratza. com
Parts: www.baratza.com
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Notes:
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© 2010
Baratza, LLC
3923-120th Ave. S.E.
Bellevue, WA. 98006
rev: 081110
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