Oster 3188 User manual

MODEL/MODÈLE
MODELO 3188
MODEL/MODÈLE
MODELO 3188
Instruction Manual
ESPRESSO & CAPPUCCINO MAKER
READ ALL INSTRUCTIONS BEFORE USING THIS APPLIANCE
Manuel d’Instructions
CAFETIÈRE POUR EXPRESSO ET CAPPUCCINO
LIRE TOUTES LES INSTRUCTIONS AVANT D ’ UTILISER CET APPAREIL
Manual de Instrucciones
CAFETERA PARA CAFE EXPRESO Y CAPUCHINO
LEA TODAS LAS INSTRUCCIONES ANTES DE USAR ESTE APARATO
Manual de Instruções
CAFETEIRA PARA CAFÉ EXPRESSO E CAPPUCCINO
LEIA TODAS AS INSTRUÇÕES ANTES DE USAR ESTE APARELHO

1
IMPORTANT SAFEGUARDS
When using electrical appliances, basic safety precautions should always be followed to
reduce the risk of fire, electric shock and/or injury to persons, including the following:
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.
• Do not touch hot surfaces. Use handles or knobs
• To protect against electric shock, do not immerse cord, plugs or appliance in water
or other liquids
• This product is not recommended for use by children
• Turn control knob to the off position “O” and unplug from electrical outlet when not
in use and before cleaning. Allow to cool before putting on or taking off parts and
before cleaning the appliance
• DO NOT operate any appliance with a damaged cord or plug or after the appliance
malfunctions or has been damaged in any manner. Return this appliance only to the
nearest Authorized Oster® Service Center for examination, repair or adjustment
• The use of accessory attachments not recommended for Oster® products
may cause hazards or injuries
• DO NOT use outdoors or for commercial purposes
• DO NOT let cord hang over edge of table or countertop or touch hot surfaces
• DO NOT place this appliance on or near a hot gas or electric burner or in a heated oven
• DO NOT use appliance for anything other than its intended use
• Use on a hard, flat level surface only, to avoid interruption of air flow underneath the
appliance
• Always be sure water reservoir cap is tightened securely before turning appliance on
• DO NOT remove reservoir cap or brew basket until pressure is completely relieved.
See Section “CAUTION: PRESSURE” on Pages 2 and 4
THIS UNIT IS FOR HOUSEHOLD USE ONLY.

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SAVE THESE INSTRUCTIONS
(FOR 120 & 127 VOLTS ONLY)
To reduce the risk of electrical shock, this appliance has a polarized plug (one blade is
wider than the other). This plug fits a polarized outlet only one way. This is a safety
feature intended to help reduce the risk of electrical shock. If the plug does not fit fully
into the outlet, reverse the plug. If it still does not fit, contact a qualified electrician. Do
not attempt to defeat this safety feature.
CARAFE USE AND CARE
Breakage may occur if the following instructions are not followed:
a. This carafe is designed for use with your Oster® Espresso/Cappuccino
Maker and therefore must never be used on a range top or in any oven,
INCLUDING A MICROWAVE.
b. DO NOT set a hot carafe on a wet or cold surface.
c. DO NOT use a cracked carafe or a carafe with a loose or weakened handle.
d. DO NOT clean the carafe with cleansers, steel wool pads or other abrasive materials.
e. Discard carafe immediately if it is ever boiled dry.
f. Avoid sharp blows, scratches or rough handling.
WARNING: To reduce the risk of fire or electric shock, do not remove any service covers.
No user serviceable parts inside. Repair should be done by authorized
personnel only. Opening the bottom service cover will void the warranty.
SPECIAL CORD SET INSTRUCTIONS
1. A short power supply cord is provided to reduce the hazards resulting from becoming
entangled in or tripping over a longer cord.
2. An extension cord may be purchased and used if care is exercised in its use.
3. If an extension cord is used, the marked electrical rating of the extension cord must be
the same as the product. The resulting extended cord must be arranged so that
it will not drape over the counter top or table top where it can be pulled on by
children or tripped over accidentally.
CAUTION: PRESSURE
In order to avoid possible burns to body parts and/or other injury from hot steam and
water, NEVER open the reservoir cap or brew basket while your Oster® Espresso/
Cappuccino Maker is turned on or as long as there is pressure in the water reservoir.
See Page 4 for more important details.

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DESCRIPTION OF THE APPLIANCE
1
2
3
4
5
6
7
8
1. Control Knob
2. Water Reservoir
3. Water Reservoir Cap
4. Frothing Aid
5. Glass Carafe
6. Filter
7. Brew Basket
8. Removable Drip Tray
and Drip Grid
9. Measuring Scoop
Control Knob Key:
Steam
Off
Brew
9

4
INTRODUCTION
Congratulations! You have selected a quality Oster® Espresso/Cappuccino Maker. This
unique appliance has been designed to provide you with delicious espresso/cappuccino
quickly and conveniently.
Espresso is a unique method of coffee brewing in which hot water is forced through finely
ground coffee. Popular in Europe, it is a far richer and more full-bodied brew than regular
American coffee. Because of its richness, espresso is usually served in 44 to 59 ml
(1.5 to 2 oz.) portions, in demitasse cups.
Most espresso drinkers outside of Europe prefer cappuccino, a drink made with about
one third espresso, one third steamed milk, and one third frothed milk.
Preparing espresso or cappuccino is very different from brewing regular drip coffee in that
this appliance operates under pressure and requires special attention.
Please read ALL of the instructions, cautions, notes and attentions in this Instruction
Manual carefully before you begin to use this appliance. When this unit is used, it creates
a vacuum as it cools. It is very important for this unit to cool down approximately 15
minutes after each brew cycle in order for the vacuum to be released and the cap and
brew basket to safely be removed. Proper care and maintenance will ensure the long life
of the Oster® Espresso/Cappuccino Maker and its trouble-free operation.
Save these instructions and refer to them often for cleaning and care tips.
CAUTION: PRESSURE
In order to check if the appliance is under pressure, follow these steps:
1. Turn the control knob to the off position “O” and unplug the appliance.
2. Rotate the control knob to the Steam position “ ”. If steam comes out of the frothing
tube, then the water reservoir is still under pressure. Turn the control knob to the off
position “O”.
3. To release the pressure, hold a pitcher with water under the frothing
tube and immerse the frothing aid in the water. SLOWLY TURN THE
CONTROL KNOB TO THE STEAM POSITION “ ” AND RELEASE THE STEAM.
4. When the frothing tube stops releasing steam, turn to the off position “O” and slowly
remove the cap.
5. Do not remove the brew basket at any time during the brewing process or until
pressure is relieved.
6. Use caution when removing the brew basket. The metal parts may still be very hot.
Also, there may be hot water floating on the top of the filter.
7. If coffee does not drip from basket, the brew basket is blocked.
Allow the appliance to cool down, and then release the steam with the instructions
above. The blockage may be caused by too finely ground coffee. See “PROBLEMS
AND CAUSES” on Page 10.
8. WHEN CLEANING THE FROTHING AID: Place a frothing pitcher or large cup with
at least an 325 ml (11 oz.) capacity half full of water under the frothing aid. Make sure
the tip of the frothing tube is submerged in liquid before turning the control knob to the
steam “ ” position. Froth the water for approximately 15 seconds.
NOTE: In order for your unit to work properly time after time, clean the frothing aid after each
use.

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HOW TO PREPARE QUALITY ESPRESSO
AND CAPPUCCINO AT HOME
THE COFFEE
The coffee should be freshly ground, dark roasted variety. You may want to try a French
or Italian roast. Pre-ground coffee will only retain its flavor for 7 – 8 days, provided it is
stored in an air-tight container, in a cool, dark area. Do not store in a refrigerator or
freezer. Whole beans are recommended, to be ground just before use. Coffee beans
stored in an air-tight container will keep up to 4 weeks before they begin to lose their
flavor.
THE GRIND
This is a vital step in the espresso making process and takes practice. The coffee must
be of a fine grind.
• The correct grind should look like salt.
• If the grind is too fine, the water will not flow through the coffee even under pressure.
This grind looks like powder and feels like flour when rubbed between fingers.
• If the grind is too coarse, the water flows through the coffee too fast, preventing
a full-flavored extraction.
Be sure to use a quality grinder for uniform consistency in your espresso grind. Oval
shaped coffee grinders are not recommended because the grind is not consistent.
BEFORE BREWING YOUR FIRST CARAFE OF ESPRESSO
Please refer to Page 3 for the Description of the Appliance.
1. Turn the control knob to the off position “O” and make sure that the appliance is
unplugged from the electrical outlet.
2. First remove and then wash the carafe, lid, filter and brew basket in a mixture of mild
detergent and water. Rinse each thoroughly and replace into the machine. See “How
to Brew Espresso” below for instructions on removal and replacement of filter and brew
basket.
3. To clean the inside of the machine, follow steps for “How to Brew Espresso” below,
using water only. Do not immerse the appliance in water or attempt to reach any
internal parts of the machine.
HOW TO BREW ESPRESSO
1. Turn the control knob to the off position “O”.
2. Fill the glass carafe with cold water to the designated marking for the desired number
of servings of espresso or cappuccino. Never use warm or hot water to fill the water
reservoir. The following chart describes how much water to use for the desired amount
of servings.

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NOTE: One serving or shot of espresso equals 2 ounces.
SERVINGS SIZE FINE ESPRESSO GROUND COFFEE WATER (COLD)
2 cups 2-cup marking on filter 2-cup mark on Glass Carafe
4 cups 4-cup marking on filter 4-cup mark on Glass Carafe
3. Remove the water reservoir cap and pour the water into the water reservoir. Be sure to
accurately measure the amount of water needed. Do not fill to the top of the reservoir
or there will not be enough area to generate steam.
CAUTION: Do not pour water into the tank while the appliance is on. Check to make
sure the control knob is in the off position “O”.
4. Screw the cap back on top of the water reservoir. Make sure it is on tight.
PREPARING THE COFFEE
1. Place the filter in the brew basket.
2. Fill with fresh, fine ground espresso coffee to the 2- or 4-cup mark of the filter. Do not
fill above the 4-cup marking. Clean any excess coffee from the rim of the filter holder.
This will assure proper fit under the brew head.
ATTENTION: Gently tamp or compress coffee. Do not overfill the filter basket.
This might cause clogging or overflow.
3. Position brew basket underneath the brew head, attach brew basket by first moving
retainer clip back, position handle to far left until it fits into the groove. Then, slowly turn
to right until brew basket is located at locked position.
BREWING ESPRESSO
ATTENTION: IF YOU ARE PLANNING TO MAKE CAPPUCCINO, PLEASE REFER TO
THE NEXT SECTION “HOW TO MAKE CAPPUCCINO.”
1. Make sure the drip grid is in place on the drip tray.
2. Place the cover on the carafe so the lid opening faces the spout, and set it on the drip
tray. The handle of the brew basket and the handle of the decanter should be in
alignment.
3. Make sure the control knob is in the off position “O”.
4. Plug the power cord into an electrical outlet and rotate the control knob upward to
the “ ” symbol, which begins the brewing process. The light will illuminate to let you
know that the machine is on.
ROTATE FILTER
HOLDER TO HERE
(This symbol is on your unit)

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5. Espresso will begin to flow into the carafe in about three to five minutes.
6. When the espresso has stopped flowing into the carafe, turn the control knob to the
off position “O”. Unplug the power cord and allow the unit to cool. Do not remove
reservoir cap or brew basket until the pressure in the appliance has been released.
Follow procedures in the section marked “CAUTION: PRESSURE” on Page 4.
CAUTION: Do not remove reservoir cap or brew basket at any time while the
appliance is under pressure or until the appliance has cooled down. Follow
the procedures marked “CAUTION: PRESSURE” on Page 4 to relieve the
pressure before removing the reservoir cap or brew basket.
7. After the machine has cooled down and all pressure has been relieved, remove the
brew basket from the brew head. Using the retainer clip to secure the filter in the filter
holder, turn the brew basket upside down to empty. Rinse the filter and brew
basket with water.
CAUTION: The metal parts of the brew basket might still be very hot. Make sure
to use the filter retainer clip when discarding the grounds. Cool these parts
by running under cold water.
8. For cleaning instructions, refer to Page 8.
HOW TO MAKE CAPPUCCINO
Cappuccino is espresso topped with steamed and frothed milk. Frothing milk for cap-
puccino takes practice. Do not be discouraged if it is not perfect the first time. The milk
should be half steamed (bottom of pitcher) and half froth (top of pitcher). It may take a
few times before you perfect this process.
For best results, we recommend frothing the milk in a separate pitcher and pouring the
milk into your coffee. The milk and pitcher should be cold. Do not use a pitcher which has
just been washed in warm water. We also recommend a stainless steel frothing pitcher
and a beverage thermometer, if you own one, for preparing the best froth and steamed
milk.
1. The first step in making cappuccino is to make espresso. Therefore, fill the glass
carafe with cold water to the designated marking for the desired number of servings.
Never use warm or hot water to fill the water reservoir. (See Chart from “How to Brew
Espresso” on Page 6)
2. Follow steps 1 – 5 in “Brewing Espresso” on Page 6 and 7.
3. Fill a small stainless steel or ceramic pitcher 1/2 full with cold milk and set next to
machine. Skim or 2% milk will be the easiest to froth.
4. If making 2 servings, stop brewing espresso at the 2- and 4-cup mark. Turn the control
knob to the “ ” position. If making 4 servings, stop brewing espresso at the 4-cup
mark. Turn the control knob to the “ ” position.
5. You are now ready to froth and steam your milk. Hold the pitcher under the frothing
tube so that the frothing aid is slightly immersed in the milk. Turn the control knob
slowly to “ ” the position. Gently move the pitcher in a circular motion around the
steam nozzle for about 45 seconds. REMEMBER: The milk and the pitcher should be
very cold prior to frothing.

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6. When the milk has doubled in volume, or, if you are using a beverage thermometer,
when the milk has reached 38°C (100°F), insert the frothing aid deeper into the milk
to further heat the milk. Do not heat milk above 65°C (150°F). To avoid splattering of
hot milk,
do not let the frothing aid go above the surface of the milk. After frothing is completed,
turn the control knob back to the off position “O”.
7. You are now ready to make cappuccino. REMEMBER: It is 1/3 espresso, 1/3 steamed
milk and 1/3 frothed milk. Pour the espresso into a cup, which has the capacity of
at least 150 ml (5 ounces). Then add the steamed milk to the espresso and spoon on
the frothed milk.
8. Follow the instructions on Page 4 under section marked “CAUTION: PRESSURE” to
flush out any residual milk from the frothing tube. It is important to properly clean your
frothing tube after each use to ensure it continues to work properly. (See Step 2 below)
9. Unplug the power cord and allow the machine to cool. Do not remove the reservoir
cap or brew basket until the pressure in the machine has been released. Follow
procedures in section marked “CAUTION: PRESSURE” on Page 4 to relieve the
pressure.
CLEANING YOUR ESPRESSO/CAPPUCCINO MAKER
1. Turn the unit to off position “O” and unplug the power cord from the electrical outlet.
2. The frothing tube may still be hot. Do not touch it with your hands until it has cooled.
Remove frothing aid and wipe frothing tube with a damp cloth. Using the wrench built
into the measuring spoon, unscrew the frothing aid and clean valve with a needle or
toothpick.
3. The carafe, carafe lid, filter, brew basket and drip tray can be washed with soapy water
or placed on the top rack only of your dishwasher. CAUTION: Do not immerse
appliance in water. Do not remove reservoir cap or brew basket while appliance is
under pressure. See Section “CAUTION: PRESSURE” on Page 4.
4. After the pressure has been released, remove reservoir cap. Discard the remaining
water through the top opening of the water reservoir by turning the appliance upside
down over the sink. Always empty the water reservoir between uses. Do not immerse
appliance in water. Screw the reservoir cap back in place.
5. Wipe housing with a soft wet cloth. Do not use abrasive cleaners or scouring pads
as they will scratch the finish.
6. Do not store the filter holder in the brew head. This can adversely affect the seal
between the brew head and the filter holder while brewing espresso.
DELIMING
Mineral deposits built-up in the Espresso Maker will affect the operation of the appliance.
Your Espresso Maker must be delimed when you begin to notice an increase in the time
to brew espresso, or when there is excessive steaming. Also, you may notice a build-up
of white deposits on the surface of the brew head.
The frequency of cleaning depends upon the hardness of the water used. The following
table gives the suggested cleaning intervals.
SUGGESTED CLEANING INTERVAL
Type of Water Cleaning Frequency
Soft Water (Filtered Water) Every 80 Brew Cycles
Hard Water (Tap Water) Every 40 Brew Cycles

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YOUR ESPRESSO/CAPPUCCINO MAKER MAY BE DELIMED
USING WHITE HOUSEHOLD VINEGAR, AS FOLLOWS:
TO DELIME WATER RESERVOIR:
1. Make sure the control knob is in the off position “O” and that the power cord is
disconnected from the electrical outlet.
2. If the appliance is cool and the pressure has been released, (See Section “CAUTION:
PRESSURE” on Page 4) remove the reservoir cap and fill reservoir with fresh,
undiluted white household vinegar.
3. Allow appliance to sit overnight with the vinegar solution in the water reservoir.
4. Discard vinegar through the top opening of the Espresso Maker by turning the machine
upside down over the sink.
5. Rinse the water reservoir thoroughly with tap water by filling tank half full with water
and then pouring the water back out into the sink, repeating this step twice.
TO DELIME INTERNAL PARTS:
1. Make sure you delime the inside of the water reservoir first by following the “Deliming”
steps above.
2. Make sure all controls are “OFF,” the power cord is disconnected from the electrical
outlet, the appliance is cool and all pressure in the appliance has been released. (See
Section “CAUTION: PRESSURE” on Page 4). Fill carafe to the top of the
metal band with vinegar and pour into reservoir.
3. Screw the cap back on top of the water reservoir. Make sure the cap is on tight.
4. Insert the brew basket (with filter) and place the glass carafe with lid on the drip tray.
5. Plug the power cord into the electrical outlet.
6. Turn the control knob to the “ ” position. When vinegar begins to flow into the carafe,
place a cup with cold water under the frothing aid. Insert the frothing tube into the
water and slowly turn the control knob to the “ ” position. After ten seconds turn the
control knob to the off position “O”. This will clean any residue left in the frothing tube
from frothing milk.
7. Turn the control knob to the “ ” position. When all the vinegar has been pumped into
the carafe and the flow has stopped, turn the control knob to the off position “O” and
allow the appliance to cool.
8. Repeat Steps 1 – 7 using only tap water to rinse any remaining traces of vinegar out of
the machine. Repeat this rinsing process, allowing the machine to cool and pressure to
be released before each rinsing.
CARAFE CLEANING
Hard water can leave a whitish mineral deposit inside the carafe. Coffee discolors these
deposits, sometimes leaving a brownish stain inside the carafe. To remove these stains,
follow these simple steps:
1. Use a solution of equal parts white vinegar and hot water.
2. Let solution stand in carafe for about 20 minutes and then discard.
3. Wash and rinse the carafe thoroughly using a soft cloth. Do not use harsh abrasive
cleaners. These may cause scratches which can lead to breakage.