Bunn B10, GR10 User Manual

USE AND CARE OF YOUR

Coffee Brewer

37688.0000B 07/05 ©2005 BUNN-O-MATIC CORPORATION

P2242 / P2243

Welcome to the world of fine coffee. The BUNN® Coffee
Brewer will enhance your enjoyment of each cup of
coffee. BUNN® coffee brewers are recognized in homes
and restaurants throughout the world as the very
finest. This booklet will know how to make a great
cup of coffee.

Keep this booklet for future reference.

www.bunn.com

Model GR10

Model B10

MODEL:

Obtain these numbers from the
bottom of the brewer before filling
the brewer with water.

DATE CODE:

®

BUNN is a registered trademark and the BUNN logo is a

trademark of Bunn-O-Matic Corporation.

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Our best
wishes for
your coffee
enjoyment.

SPECIFICATIONS

Electrical - UL listed for household use only. This brewer has an attached,
3 prong grounded cord set and requires 2-wire service with ground, rated
120 volts ac, 71⁄2 amps, single phase, 60 Hz. Components include an 800­watt tank heater, 34 watt tank “Keep Warm” heater and 46 watt decanter

warmer; 900 watts total.

Dimensions - 141⁄4 inches high; 7 inches wide; 133⁄4 inches deep

Brew Capacity - Four to ten 5-ounce cups per batch.

Weight - 8 pounds; includes decanter, filters, coffee funnel, and deliming
spring probe.

HIGH ALTITUDE USE

Your BUNN coffee brewer is designed to operate in most areas of
the country. For high altitude use, over 5000 feet, the models with a “D”
designation should be used.

Table of Contents

IMPORTANT SAFEGUARDS .........................................4

GENERAL INFORMATION ...........................................

5

PREPARING THE BREWER FOR USE ...........................

6

BREWING DELICIOUS COFFEE ..................................7

HOT WATER ................................................................

7

COFFEE FUNDAMENTALS ...........................................8

BREWING TIPS ............................................................

8

DECANTER HANDLE MAINTENANCE ........................

8

ROUTINE CLEANING ..................................................

9

DELIMING ...................................................................9

PERIODIC CLEANING .................................................9

DRAINING THE BREWER ..........................................

10

WATER QUALITY .......................................................

10

SOFTENED WATER/DECAFFEINATED COFFEE .........

10

AUTHORIZED SERVICE .............................................

10

BUNN COMPANION PRODUCTS ..............................11

LIMITED WARRANTY ................................. Back Cover

BUNN CORPORATION

1400 STEVENSON DRIVE

SPRINGFIELD, ILLINOIS 62703

www.bunn.com

If you need any assistance, please call us at:

1–800–352–2866

In order to receive full assistance, please have your Date

Code ready when calling for service.

(Located on the bottom of your brewer)

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Hazardous Voltage!

Can Cause Fire Or Electrical Shock!

Do not disassemble the brewer

There are no user serviceable parts inside

Repair should be done by authorized service personnel

(Refer to page 10 )

WARNING

BUNN

®

HOME MODEL COFFEE BREWER

STAINLESS

STEEL HOT

WATER TANK

(LOCATED INSIDE)

VACATION

SWITCH

HINGED
FLIP-LID

WARMER

SWITCH

DECANTER

P2242

This symbol alerts you to

important operating and

service instructions.

This symbol alerts you to the

risk of fire or electrical shock in

the accompanying message.

BREW

FUNNEL

P229 / P230

RISK OF FIRE OR ELECTRICAL SHOCK

4

• Read all instructions.

• Do not touch hot surfaces. Use
handles or knobs.

• Do not place cord, plugs, or
brewer in water or liquid.

• Close supervision is necessary
when the brewer is used by or
near children.

• Unplug from outlet when not in
use for extended periods of time
and before cleaning. Allow to
cool before putting on or taking
off parts, and before cleaning.

• Do not operate the brewer
with a damaged cord or plug
or if the brewer malfunctions
or is damaged in any manner.
Return the b r e wer to an
Authorized Service Facility for
examination, adjustment, or
repair. (Refer to page 10.)

• The use of an accessory not
evaluated for use with this brewer
may cause injuries.

• For household use only. Do not
use outdoors.

• Do not let cord hang over edge
of table or counter or touch hot
surfaces.

• Do not place the brewer on or
near a hot gas or electric burner
or in a heated oven.

• Do not use brewer for other than
its intended use.

• Do not remove funnel, decanter,
or decanter lid while brewing.

• The decanter must not be used on
a range top or in a microwave.

• Do not set a hot decanter on a
cold surface.

• Do not use a cracked decanter
or a decanter with a loose or
weakened handle.

• Do not clean decanter with
cleansers, steel wool pads, or
other abrasive materials.

• When the brewer is idle, the
lid should be in the closed
position.

IMPORTANT SAFEGUARDS

Follow these basic safety precautions when using electrical appliances
to reduce the risk of fire, electric shock, and/or personal injury:

SAVE THESE INSTRUCTIONS

• A short power-supply cord is used to reduce the risks resulting from
becoming entangled in or tripping over a longer cord.

• If an extension cord is used, the marked electrical rating of the extension
cord should be at least as great as the electrical rating of the brewer.
The cord should be arranged so that it will not hang over edge of table
or counter where it can be pulled on by children or tripped over.

• The extension cord must be of the 3-pronged, 3-socketed, grounding
type, 3-wire cord. (Including grounding conductor).

5

GENERAL INFORMATION

NOTE - THE BREWER IS NOT READY TO PLUG IN

(See Page 6)

Improper installation will result in permanent damage and void the
limited warranty. Read and follow the instructions on the next page.

• This brewer is designed to remain plugged in at all times
(except during initial installation or when cleaning).

• A vacation switch is provided on the lower left side to completely shut
off all electrical components when your plans take you away from home
for three or more days. Safety features, designed into the BUNN

®

coffee

brewer, make the daily use of this switch unnecessary.

• If the brewer has been shut off or unplugged, fill the tank with water
and allow the water in the tank to heat to the proper temperature before
using (about fifteen minutes or until the heating sound stops).

• Your BUNN

®

coffee brewer has a specially designed tank to keep the
water at the proper temperature. This constant supply of hot water
assures correctly brewed coffee in less than three minutes.

• The brewed coffee flows into the decanter where it is kept at serving
temperature on the porcelain decanter warmer. The warmer is controlled
by the lighted on/off switch on the front of the brewer.

NOTE- The warmer switch controls only the decanter warmer.

• While coffee is being brewed, the newest water in the tank is heated to
the proper temperature and held until needed.

• When the brewer is not in operation, the flip-lid should be closed. If the
lid is left open, water could drip from the sprayhead when cold water
is poured into the top of the brewer.

• The decanter lid reduces coffee evaporation and temperature loss.

• Use CAUTION when dispensing hot water from the brewer. The water
is approximately 50°F hotter than that available from your hot water
faucet and is always available for other uses.

• The brewer is equipped with a 120 volt, 3-prong, grounded cord set. The
plug is provided with a round grounding pin. This is a safety feature and
allows the plug to fit into a properly grounded outlet. If the plug does
not fit into the outlet, contact an electrician to update your outlet. Do
not attempt to bypass the safety aspect of this plug.

• The sprayhead may periodically become loose. Using extreme caution
since it may be hot, retighten the sprayhead with your finger tips.

NOTE- A severe burn may result if the sprayhead become

loose and falls off while brewing.

6

PREPARING THE BREWER FOR USE

NOTE - THE BREWER IS NOT READY TO PLUG IN.
Do NOT plug in until Step #3.

Raise the hinged flip-lid.
NOTE: The post protruding from the screen is
connected to a stopper that controls the flow of water
into the tank. When lid is closed (post depressed), the
stopper is raised and water will flow into the tank.

Plug in the brewer.

Step 2
Slide an empty brew funnel into the brewer under
the warmer switch. Pour one decanter full of water into
the screened area on top of the brewer. Place decanter
on the warmer. Close lid. Wait three minutes to allow
the water to flow into the tank. Repeat this process.
When the tank is full, some water will flow through the
funnel and into the decanter.

P2240

P2247

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Step 4
Press the bottom of the vacation switch, located on
the lower left side of the brewer, to the “ON” (lower)
position.
The vacation switch controls power to the tank heater.
Initially you will have to wait approximately fifteen minutes
in order for the water to reach brew temperature.
Empty any water that has collected in the decanter.

The next page leads you through the five easy steps to

‘BREWING DELICIOUS COFFEE’

Step 1

Step 3

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BREWING DELICIOUS COFFEE

Insert a BUNN

®

coffee filter into the brew funnel.
Be sure to use BUNN® coffee filters for proper
brewing. Order more paper filters direct from
BUNN® at www.bunn.com

Measure coffee into the filter and gently shake the

filter to level the bed of grounds. To determine the
amount of coffee to be used, see Page 8.

Make sure that the sprayhead is tight. Slide the brew

funnel into the brewer under the warmer switch. Place
the lighted warmer switch in the “ON” position.

Raise the hinged flip-lid and pour a decanter of water

into the top of the brewer. Place the decanter on the
warmer, THEN close the lid. Your BUNN® brewer will
begin brewing coffee immediately. Flip-lid should also
remain closed when brewer is not in operation.

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When brewing has stopped, remove the brew funnel

and discard the filter and grounds. Do not touch hot
grounds.

NOTE: Opening the lid during brew cycle will interrupt the flow of water into the tank,
but will not interrupt the brewing process. The brewed coffee already in the funnel
will empty into the decanter. When lid is closed, the flow of water into the funnel will
resume until the brewing cycle is complete.
WARNING:

Do not close the lid after pouring in water, without the decanter in place.

Closing the lid releases the hot water.

HOT WATER (USE WITH CAUTION)

The same basic steps can be used to obtain hot water by omitting the filter and coffee.
The water from your BUNN

®

coffee brewer is approximately 200° F. This is hotter

than the hot water from your faucet and must be handled with care.

Step 1

Step 2

Step 3

Step 4

Step 5

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COFFEE FUNDAMENTALS

Brewing delicious coffee is similar to cooking any favorite food. Both require a
good recipe. Proper coffee brewing requires quality equipment to precisely control
water temperature, volume, and brew time. The BUNN® coffee brewer assures
consistency in your recipe by controlling all of these elements. The only variables
remaining in the recipe are the grind and amount of coffee used.

The amount of ground coffee is generally determined by the grind. For best
results, we recommend a drip (medium) grind.

Hot water extracts many elements from the coffee. The amount of coffee used
and the amount of water passed through the coffee determines strength. Increasing
the amount of coffee results in a stronger beverage. Decreasing the amount of coffee
with the same amount of water results in a weaker beverage. Too much water and
too little coffee can result in over-extraction.

As the amount of coffee decreases, you’ll note an increase in the bitterness of
the beverage. This happens because the hot water begins to remove the undesirable
elements after all of the desirable elements have been extracted.

Fresh-ground coffee gives the best results. Always store ground coffee in a
cool, dry area away from other food items with strong odors. When stored in a
refrigerator, keep coffee in an airtight container.

BREWING TIPS

When coffee is properly brewed, the difference between the best quality ground
coffee and a poor quality ground coffee becomes very dramatic. Proper brewing
requires little effort with the BUNN

®

coffee brewer.

You’ll have a great coffee experience if you follow these tips:

1) Start with clean equipment.

2) Use fresh cold water.

3) Use BUNN

®

paper coffee filters for proper extraction.

4) Using a minimum of 2 ounces of fresh drip grind coffee for each full pot will

give you a consistently great pot of coffee with a full-bodied flavor and aroma.

However, the real criteria is personal taste. Adjust the recipe until it suits

you. If you need to make a smaller batch, experiment with less water

and ground coffee. Minimum batch is 4 cups as indicated on the

decanter.

5) Keep the beverage at the correct serving temperature by setting the decanter

on the porcelain warmer. For the freshest flavor, don’t hold brewed coffee on

the warmer for longer than an hour.

DECANTER HANDLE MAINTENANCE

Using a standard screw driver, periodically tighten the screw in the handle. Be
careful not to overtighten the screw.

9

ROUTINE CLEANING

Rinsing the brew funnel and decanter after each use
is the only routine cleaning required. Occasionally, wipe
the outside of the brewer including the area above the
funnel with a damp cloth. (The brew funnel and decanter
are top-rack dishwasher safe.)

DELIMING

Periodically, you should delime the brewer to clear any
deposits that may have accumulated due to impurities in the water source.

NOTE- Unplug the brewer and let it cool down before deliming.

1) Unscrew the sprayhead with your fingertips and set it aside.

2) Insert all but two inches of the flexible deliming tool

(supplied) into the sprayhead tube.

3) Slide the tool in and out five or six times to loosen lime

in the sprayhead tube. Remove the tool.

4) Pour one decanter of fresh water into the brewer, set the

empty decanter on the warmer, and close the lid.

5) Check the holes in the sprayhead. If plugged with lime,

they may be cleared by using a toothpick. Clean the

sprayhead with a cloth and mild detergent. Rinse the

sprayhead with water before reinstalling.

6) Plug in the brewer and allow the water in the tank to

reheat before using. The frequency of

deliming depends

on the mineral content of your water.

(Recommended at least every three months)

1) Slide an empty brew funnel into the brewer under the warmer switch and

center an empty decanter on the warmer.

2) Pour one quart of white vinegar into the top of the brewer and close the lid.

Empty the decanter when liquid stops flowing from the funnel.

3) Allow the brewer to sit for two hours.

4) Unplug the brewer. Remove the brew funnel and sprayhead from the brewer

and set them aside. Clean the sprayhead with a cloth and mild detergent.

5) To drain the brewer, continue to Step 6,

OR to clear vinegar out of brewer
without draining, pour a decanter of fresh, cold water through the brewer.
Place decanter on warmer, then close the lid to allow the water to run through
the brewer. After it has run through, empty decanter, and repeat the process
approximately 8 - 10 times. Proceed to Step 9.

6) Cool the brewer by pouring a full decanter of fresh, cold water into the top
of the brewer. Place decanter on warmer, close lid. When water has stopped
flowing from the brewer, empty the decanter. Repeat this process one more
time, then set the decanter aside.

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PERIODIC CLEANING

10

7) Grasp the back of the brewer and quickly turn it upside down over a sink as
shown. Most of the water in the tank will flow from the
sprayhead tube opening. Some water may flow from the
area around the top lid. Continue tipping the brewer until
the flow stops.

8) Replace the sprayhead and funnel after the water has been
drained. Pour a decanter of water into the top of the brewer.
Place the decanter on the warmer, close the lid. Repeat
this process with another decanter of water. Water will
flow out of the funnel after the second decanter. When
flow from the funnel has stopped, empty the decanter
and pour an additional decanter of water into the brewer.
Place the decanter on the warmer and close the lid.

9) If you have not replaced the sprayhead and funnel, do
so now before proceeding. Taste the water coming out of
the brewer. Pour additional decanters of fresh, cold water
into the brewer as needed until the water has no vinegar taste.

10) Plug in the brewer and allow the water in the tank to reach brewing temperature
before using. (Approximately 15 minutes.)

DRAINING THE BREWER

The water in your BUNN® Coffee Brewer should be emptied whenever it is
taken on a trip, shipped, or stored in an unheated location with a chance of freezing.
Follow steps 4-7 of the PERIODIC CLEANING section.

WATER QUALITY

Install a water conditioner if your water contains excessive amounts of sediment,

taste, or odors.

SOFTENED WATER / DECAFFEINATED COFFEE

Use of decaffeinated coffee and/or softened water may cause the brewed coffee

to drain more slowly through the paper filter, occasionally resulting in an overflow
of grounds into the decanter. While this is not unusual in coffee brewing, it can
be avoided by using slightly less coffee, a coarser grind, or both. If the overflow
persists, please contact BUNN

®

to order a special sprayhead free of charge.

AUTHORIZED SERVICE

Bunn Corporation

16431 Carmenita Road

Cerritos, California 90701

[phone]

Bunn Corporation

900 E. Townline Rd.

Creston, IA 50801

P204

PERIODIC CLEANING (cont.)

For Service Information Contact:

Bunn Corporation

[phone]

To receive full assistance, please have date code ready when calling for service.

(Located on the bottom of your brewer)

Service Center Locations:

P227

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OTHER BUNN® PRODUCTS

COFFEE AND TEA FILTERS
Constant quality testing assures
consistent flavor with no grounds
in the cup. BUNN

®

paper filters are
packaged to maintain their fluted
shape for use in most basket-type
drip coffee makers.

AUXILIARY WARMERS

Durable, porcelain coated, scratch-re

­sistant warmer with lighted ON/OFF
switch keeps an extra decanter of
coffee, tea, hot chocolate or soups at
perfect temperature.

NCD DECANTERS
Extra glass decanters are an attractive
and useful way to serve coffee, hot
or iced tea, soups, cold juices, hot
chocolate, etc.

P2245

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Paper Filter

NCD

BCW

BUNN COFFEE GRINDER
Large burrs flake beans (not pulverize)
to the correct size and shape for
maximum flavor extraction. High
capacity bean hopper keeps up to one
full pound of coffee fresh for days.

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LIMITED WARRANTY

Bunn-O-Matic warrants the BUNN Pour-Omatic® Coffee Brewer (“Brewer”),
except glass serving bowl, to be free from defects in material and workmanship
existing at the time of manufacture and appearing within one of the following
warranty periods:

a) Three (3) years from the date of original purchase of a

NEW BREWER.
b) The later of three (3) years from the date of original purchase or one (1) year
from the date REPAIRED OR REPLACEMENT BREWER is received by the
customer when returned to Bunn-O-Matic before the new Brewer warranty
has expired.
c) One (1) year from the date REPAIRED OR REPLACEMENT BREWER is received
by the customer when returned to Bunn-O-Matic after the new Brewer war

­ranty has expired.
d) One (1) year from the date of purchase of a REMANUFACTURED BREWER

.
If such a defect appears during the warranty period, we will (at our sole
option) repair or replace the defective Brewer with no charge for service or
parts, provided the Brewer is delivered at the customer’s expense to one of the
authorized service centers listed on page 10 of this booklet.

This warranty does not cover claims resulting from misuse, failure to follow
instructions on installation and use, use with water having a high mineral content,
neglect, use of unauthorized attachments, commercial use, use on a current or
voltage other than specified on the Brewer, or unauthorized service during the
warranty period on conditions otherwise covered by warranty.

THIS WARRANTY SHALL BE EXCLUSIVE AND SHALL BE IN LIEU OF ANY
OTHER EXPRESS WARRANTY, WRITTEN OR ORAL, INCLUDING BUT NOT
LIMITED TO ANY EXPRESS WARRANTY OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE. THE DURATION OF ANY IMPLIED WARRANTIES,
INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANT

­ABILITY OR FITNESS FOR A PARTICULAR PURPOSE, IS EXPRESSLY LIMITED
TO THE PERIOD OF DURATION OF THIS LIMITED WARRANTY.

Some states do not allow limitations on how long an implied warranty lasts,
so the above limitation may not apply to you.

THE CUSTOMER’S EXCLUSIVE REMEDY FOR BREACH OF THIS WARRANTY
OR OF ANY IMPLIED WARRANTY OR OF ANY OTHER OBLIGATION ARISING
BY OPERATION OF LAW OR OTHERWISE SHALL BE LIMITED AS SPECIFIED
HEREIN TO REPAIR OR REPLACEMENT, AT OUR SOLE OPTION. IN ANY EVENT,
RESPONSIBILITY FOR SPECIAL, INCIDENTAL AND CONSEQUENTIAL DAMAGES
IS EXPRESSLY EXCLUDED.

Some states do not allow the exclusion or limitation of incidental or
consequential damages, so the above limitation or exclusion may not apply
to you.

This warranty gives you specific legal rights, and you may have other rights
which vary from state to state.