Introduction

This document provides instructions for the KRUPS Crystal Arome and Crystal Arome Time coffee makers, models #398 and #458 respectively. These coffee makers offer features designed for convenience and quality coffee brewing.

The KRUPS Crystal Arome coffee maker features a unique "Crystal Clear" vegetable-based cocoa filter that removes up to 82% of unwanted chlorine from water, enhancing the coffee's smoothness and richness while retaining important minerals. The hermetically designed carafe and lid keep coffee hotter for longer periods without compromising aroma or taste.

The Crystal Arome Time model includes a 24-hour programmable timer for "wake-up" coffee and a programmable auto shut-off feature. Both models feature a filtration indicator to signal when the filter needs changing or the coffeemaker requires decalcifying, a convenient filter holder, a "Stop'n Serve" feature for pouring coffee mid-brew, a hinged water container lid, an easy-to-read water level indicator, and a non-stick warming plate with raised edges for stability. Hidden cord storage allows for adjustable cord length.

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 and information in this instruction book and any other literature included in this carton referring to this product before operating or using this 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 liquid.
• Close supervision is necessary when any appliance is used by or near children.
• Unplug from 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 appliance to an authorized service facility for examination, repair or adjustment.
• The use of an accessory not evaluated for use with this appliance may cause injuries.
• Do not use outdoors.
• Do not let cord hang over edge of table or counter, or touch hot surfaces.
• Do not place on or near a hot gas or electric burner, or in a heated oven.
• To disconnect, turn switch to "OFF", then remove plug from wall outlet.
• Do not use appliance for other than intended use.
• Snap lid securely onto glass carafe before serving beverages.
• Do not remove glass carafe from heating plate while water is dripping from the spout.
• Appliance with glass carafes:
  • A. The carafe is designed for use with these appliances. It must never be used on a range top.
  • B. Do not set a hot carafe on a wet or cold surface.
  • C. Do not use a cracked carafe or a carafe having a loose or weakened handle.
  • D. Do not clean carafe with cleansers, steel wool pads, or other abrasive material.

SAVE THESE INSTRUCTIONS

CAUTION

This appliance is for household use only. Any servicing other than cleaning and user maintenance should be performed by the nearest authorized KRUPS Service Center (see Guarantee of Performance).

Do not immerse base in water.

To reduce the risk of fire or electric shock, do not remove the base. No user serviceable parts inside. Repair should be done by an authorized KRUPS Service Center only.

SPECIAL CORD SET INSTRUCTIONS

Regarding your cord set:

• A. A short power-supply cord is provided to reduce risks resulting from becoming entangled in or tripping over a longer cord.
• B. Longer extension cords are available and may be used if care is exercised in their use.
• C. If a long extension cord is used, (1) the marked electrical rating of the extension cord should be at least as great as the electrical rating of the appliance, (2) if the appliance is of the grounded type, the extension cord should 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.
• D. This appliance has a polarized plug (one blade is wider than the other). As a safety feature, this plug will fit in a polarized outlet only one way. If the plug does not fully fit in the outlet, reverse the plug. If it still does not fit, contact a qualified electrician. Do not attempt to defeat this safety feature.

Product Components and Features

The KRUPS coffee maker consists of several key components:

• a: "Crystal Clear" filter cartridge
• b: Water chamber
• c: Water level indicator
• d: Filtration indicator (Model #398)
• e: Illuminated ON/OFF switch (Model #398)
• f: Flavor selector buttons (Model #398)
• g: Filter holder
• h: Warming plate
• i: Program selector panel (Model #458) with settings:
  • Off: Power off
  • on: Switch on without pre-programming
  • 0: Set the time
  • prog.: Pre-program time
  • auto.: Activate pre-programmed time
• j: Illuminated filtration indicator (Model #458)

Key Features

• Exclusive "Crystal Clear" filter for improved taste and mineral retention.
• Hermetically designed carafe and lid for extended heat retention.
• Filtration indicator for filter replacement and decalcifying reminders.
• Flavor selector button (Model #398) for 1-3 cups or 4-10 cups.
• 24-hour programmable timer (Model #458) for scheduled brewing.
• Programmable auto shut-off (Model #458) for keeping coffee hot (1-5 hours).
• Convenient filter holder for easy cleaning.
• "Stop'n Serve" feature allows pouring coffee mid-brew without dripping.
• Hinged water container lid to protect from dust and dirt.
• Easy-to-read water level indicator.
• Non-stick automatic warming plate with raised edges.
• Hidden cord storage for adjustable cord length.

Operating Instructions

Setting the Clock (Model #458)

To set the digital clock on the Model #458:

1. Plug in the coffee maker and ensure the selector panel (i) is on the "off" position.
2. The LCD display will flash intermittently, indicating it's time to set the clock.
3. Turn the selector switch to the '0' [set time] position.
4. Set the hour and minutes by pressing the [hour button] ('h') and [minute button] ('min.') buttons respectively. The time is now set.

Initial Brewing (Water Only)

Before making your first pot of coffee, it is recommended to operate the coffeemaker once or twice with water only, without ground coffee or a paper filter, to remove any possible dust.

Brewing Coffee

Preparing the Coffee Maker:

• Ensure the water container is empty. Remove any inserted literature.
• Position the lid of the glass carafe properly during the brewing process, snapping it into place.
• Place the carafe directly underneath the brewing spout.

Filling the Water Chamber:

Open the hinged lid. Using the glass carafe, pour the desired quantity of water into the water chamber. The water level indicator shows the amount of water being added. Note that the amount of brewed coffee will be slightly less than the water added due to coffee absorption.

It is recommended to add a little extra water at the beginning to ensure the desired number of cups are brewed. Replace the glass carafe on the warming plate with its lid in position.

Adding Ground Coffee:

1. With the hinged lid open, insert a paper filter (KRUPS size 4 recommended) into the filter holder, ensuring the seam faces right.
2. For robust coffee, use one level KRUPS measuring scoop of ground coffee per cup. Adjust the amount to your taste after several uses.
3. Close the hinged lid, ensuring the filter holder is securely in place.

Brewing with Model #398:

The Model #398 features a flavor selector button. Press the '1-3' button to brew 1-3 cups, which extends the brewing cycle for richer coffee. For 4-10 cups, press the '4-max' flavor selector button. Then, press the ON/OFF switch to the 'I' position. The indicator light will illuminate, and brewing will commence.

Brewing with Model #458:

Turn the selector switch to the "on" position. The red indicator light will illuminate, indicating that the brewing process has begun.

"Stop'n Serve" Feature

This feature automatically stops the flow of brewed coffee through the filter cone if the glass carafe is removed from the warming plate during brewing. You have approximately 20 seconds to serve one or two cups before the device closes the filter cone, preventing drips. Replacing the carafe resumes the brewing cycle.

CAUTION: If coffee drips onto the warming plate after carafe removal, it may indicate too much ground coffee was used, causing overflow. Replace the carafe immediately and allow the full brewing cycle to complete. Do not remove the filter until brewing is finished.

Preparing "Wake-Up" Coffee (Model #458)

To enjoy freshly brewed coffee at a set time:

1. Set the "wake-up" time by turning the selector switch to the "prog." [program] setting. The [clock symbol] will flash. Press the [hour button] ('h') and [minute button] ('min.') to set the desired start time.
2. Put in ground coffee and fill the water chamber to the desired cup level.
3. Place the carafe back on the warming plate.
4. Turn the selector switch to the "auto." [auto] setting. The [auto symbol] will remain constant, indicating the coffee maker is programmed.
5. At the pre-programmed time, the indicator light will illuminate, and brewing will begin.

NOTE: If the selector switch remains in the "auto." position, the coffee maker will activate daily at the programmed time. Turn the selector to "off" ('0') after each use if this is not desired.

Auto Shut-Off Feature (Model #458)

This feature keeps coffee hot for up to 5 hours and then automatically shuts off. By default, it is set for 1 hour. To adjust the keep warm time:

• Turn the switch to the "off" position.
• Press the "min." [minute button] to set auto shut-off to 1 hour (indicated by a blinking cup icon).
• To increase the keep warm time in 1-hour increments (up to 5 hours), keep the "min." button pressed and press the "hours" button.
• The programmed time is stored until changed. If no keep warm time is set, it defaults to 1 hour.

Maintenance and Care

Filtration Indicator & Decalcifying

The filtration indicator alerts you when it's time to change the "Crystal Clear" charcoal filter (typically after 80 cycles) and when the coffeemaker needs decalcifying.

• Model #398: The filtration indicator (d) turns red when it's time to change the filter. Once changed, press the small hole to the left of the indicator to reset it to 0 cycles.
• Model #458: The filtration indicator (j) illuminates and flashes when it's time to change the filter. Push the small hole to the left of the light with a pointed instrument to reset the indicator to 0 cycles after changing the filter.

Inserting/Changing the "Crystal Clear" Filter

1. Lift out the grey filter cartridge (a) located next to the water chamber.
2. Open the bottom hinged portion of the cartridge by twisting to the left.
3. Remove and discard the old filter.
4. Insert a new filter by dropping it into the filter cartridge.
5. Replace the filter cartridge back into the chamber.

NOTE: Replacement filters can be purchased by contacting the KRUPS Consumer Service Department.

Hidden Cord Storage

The power cord length can be adjusted using the hidden cord storage located behind the coffeemaker.

Decalcifying

Your KRUPS coffeemaker requires periodic cleaning with a decalcifying agent due to calcium (limestone) deposits from drinking water. The frequency depends on water hardness and usage. In areas with hard water, decalcifying may be needed more often.

Cleaning

• Always unplug the coffeemaker before cleaning.
• Remove the filter holder. Clean the filter holder, carafe, and carafe lid in hot water with mild liquid soap. These parts are also top-rack dishwasher safe.
• Never use scouring agents.
• Never immerse the appliance itself in water or any other liquid. Clean the exterior by wiping with a soft, damp cloth.
• Avoid using a cloth to clean the inside of the water chamber, as this can leave fuzzy deposits. Rinse the chamber with cold water periodically.

Warranty and Guarantee

Limited One Year Warranty

Your KRUPS #398/458 is covered by a one-year warranty from the date of purchase against defects in materials or workmanship. KRUPS North America will, at its option, repair or replace the unit free of charge, provided proof of purchase is supplied.

This warranty is void if the malfunction is caused by accident, misuse, incorrect frequency or voltage, tampering, damage during transit, or commercial use. This warranty grants specific legal rights, and you may have other rights that vary by state.

Guarantee of Performance

This KRUPS product is manufactured to high quality standards. With minimum care, it should provide years of satisfying service.

For repairs or replacement parts within or after the warranty period, contact the CONSUMER SERVICE DEPARTMENT:

(800) 526-5377
24-hours a day, 7 days a week

You will receive specific instructions for repair, along with the name and address of your nearest authorized KRUPS Service Center. The department can also answer general product questions.

Before calling, please have your KRUPS appliance's type number available. This information can be found at the bottom of your appliance. The type number for this product is #398 / #458.

For general correspondence, address your letters to:

KRUPS North America, Inc.
P.O. Box 3900
Peoria, IL 61612

For Best Results

• Always use fresh, cold water. Warm water may be stale and contain mineral deposits that impair coffee flavor.
• Grind your own beans for maximum aroma and flavor. Use one KRUPS measuring scoop of beans per cup.
• Serve coffee immediately after brewing.
• Never reheat coffee.