Amazon Basics CM1091A-UL

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Amazon Basics 12-Cup Coffee Maker User Manual

Model: CM1091A-UL

1. Product Overview

The Amazon Basics 12-Cup Coffee Maker is an automatic drip coffee machine designed for convenient use in various settings, including homes, apartments, dorm rooms, and offices. It features a sleek black and stainless steel finish, a reusable filter, and a warming plate to keep coffee hot. Its compact design and user-friendly operation make it suitable for daily coffee brewing.

Amazon Basics 12-Cup Coffee Maker, front view

Figure 1: Front view of the Amazon Basics 12-Cup Coffee Maker.

Key features include a visible water window for precise measurement, an ON/OFF indicator light for clear operation status, and overheat protection for safety. The removable filter basket simplifies cleaning and maintenance.

2. Important Safety Information

Please read all instructions carefully before using this appliance. Failure to follow these instructions may result in electric shock, fire, or serious injury.

  • Do not immerse the appliance, cord, or plug in water or other liquids.
  • Close supervision is necessary when the 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.
  • The use of accessory attachments not recommended by the appliance manufacturer may result in fire, electric shock, or injury to persons.
  • 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.
  • Always attach plug to appliance first, then plug cord into the wall outlet. To disconnect, turn any control to "off", then remove plug from wall outlet.
  • Do not use appliance for other than intended use.
  • WARNING: This product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.

3. Package Contents

Ensure all items are present and in good condition upon opening the package.

  • Amazon Basics 12-Cup Coffee Maker Unit
  • Glass Carafe
  • Reusable Filter Basket
  • Instruction Manual (this document)

4. Setup

Before first use, follow these steps to prepare your coffee maker.

  1. Unpack: Carefully remove all packaging materials from the coffee maker.
  2. Clean Components: Wash the glass carafe and the reusable filter basket in warm, soapy water. Rinse thoroughly and dry.
  3. Initial Rinse Cycle:
    • Fill the water reservoir with clean water up to the "MAX 12" line.
    • Place the empty reusable filter basket into its holder.
    • Place the empty carafe on the warming plate.
    • Plug the coffee maker into a standard electrical outlet.
    • Press the ON/OFF switch to start a brewing cycle without coffee grounds.
    • Allow the full cycle to complete. Discard the hot water from the carafe.
    • Repeat this process once more to ensure the appliance is clean and ready for use.
Diagram showing coffee maker dimensions and components: removable filter basket, carafe, warming plate.

Figure 2: Overview of coffee maker components and dimensions.

5. Operating Instructions

Follow these steps to brew coffee with your Amazon Basics 12-Cup Coffee Maker.

  1. Fill Water Reservoir: Open the top lid and fill the water reservoir with fresh, cold water. Use the visible water window on the side of the coffee maker to measure the desired number of cups. Do not exceed the "MAX 12" line.
    Close-up of the water level indicator on the side of the coffee maker.

    Figure 3: Water level indicator for precise filling.

  2. Add Coffee Grounds: Place the reusable filter basket into its holder. Add the desired amount of ground coffee into the filter basket. A general guideline is one tablespoon of coffee grounds per cup, but adjust to your taste.
  3. Position Carafe: Ensure the glass carafe is placed correctly on the warming plate.
  4. Start Brewing: Plug the coffee maker into a standard electrical outlet. Press the ON/OFF switch located on the side of the unit. The indicator light will illuminate, signaling that the brewing process has begun.
    Diagram showing reusable filter, comfort grip handle, water level, and ON/OFF button.

    Figure 4: Key operational features including the ON/OFF switch.

  5. Mid-Brew Pause: The coffee maker features a mid-brew pause function, allowing you to temporarily remove the carafe to pour a cup before the brewing cycle is complete. Replace the carafe within 20 seconds to prevent overflow.
  6. Keep Warm Function: Once brewing is complete, the warming plate will keep the coffee hot until the unit is manually turned off.
  7. Turn Off: To turn off the coffee maker, press the ON/OFF switch again. Unplug the appliance from the outlet when not in use.

6. Maintenance and Cleaning

Regular cleaning ensures optimal performance and extends the life of your coffee maker. Always unplug the appliance and allow it to cool completely before cleaning.

6.1 Daily Cleaning

  • Carafe and Filter Basket: Remove the glass carafe and the reusable filter basket. Wash them in warm, soapy water. Rinse thoroughly and dry. These parts are also top-rack dishwasher safe.
    Close-up of the glass carafe with handle and measurement markings.

    Figure 5: The glass carafe, easily removable for cleaning.

    Close-up of the reusable filter basket inside the coffee maker.

    Figure 6: The reusable filter basket, designed for easy removal and cleaning.

  • Exterior: Wipe the exterior surfaces of the coffee maker with a soft, damp cloth. Do not use abrasive cleaners or scouring pads.
  • Warming Plate: Wipe the warming plate with a damp cloth. Do not use abrasive materials that could scratch the surface.

6.2 Descaling (Monthly or as Needed)

Mineral deposits from water can build up in your coffee maker, affecting performance. Descale your coffee maker regularly, especially if you have hard water.

  1. Prepare Descaling Solution: Mix 1 cup of white vinegar with 2 cups of cold water. Alternatively, use a commercially available descaling solution designed for coffee makers, following the product's instructions.
  2. Run Descaling Cycle:
    • Pour the descaling solution into the water reservoir.
    • Place the empty carafe on the warming plate.
    • Press the ON/OFF switch to start a brewing cycle.
    • Allow half of the solution to brew through, then turn off the coffee maker and let it sit for 15-20 minutes to allow the solution to work.
    • Turn the coffee maker back on to complete the brewing cycle.
    • Discard the solution from the carafe.
  3. Rinse Cycles: Fill the water reservoir with clean, cold water and run two full brewing cycles with only water to rinse out any remaining descaling solution. Discard the water after each cycle.

7. Troubleshooting

If you encounter issues with your coffee maker, refer to the table below for common problems and solutions.

ProblemPossible CauseSolution
Coffee does not brew.
  • Coffee maker not plugged in.
  • ON/OFF switch not pressed.
  • Water reservoir empty.
  • Ensure the power cord is securely plugged into a working outlet.
  • Press the ON/OFF switch. The indicator light should illuminate.
  • Fill the water reservoir with water.
Coffee tastes weak or too strong.
  • Incorrect coffee-to-water ratio.
  • Coffee grounds too coarse/fine.
  • Adjust the amount of coffee grounds to your preference.
  • Use medium-grind coffee for optimal results.
Water overflows from filter basket.
  • Too much coffee grounds.
  • Carafe not properly seated.
  • Coffee maker needs descaling.
  • Reduce the amount of coffee grounds.
  • Ensure the carafe is fully pushed onto the warming plate.
  • Perform a descaling cycle (see Section 6.2).
Coffee is not hot enough.
  • Warming plate not active.
  • Coffee maker needs descaling.
  • Ensure the coffee maker is on and the warming plate is active.
  • Perform a descaling cycle (see Section 6.2).

8. Specifications

BrandAmazon Basics
Model NumberCM1091A-UL
Coffee Maker TypeDrip Coffee Machine
Capacity12 Cups
ColorBlack & Stainless Steel
Product Dimensions (D x W x H)7.09" x 11.81" x 12.13"
Item Weight2.91 pounds
Special FeaturesReusable Filter, Keep Warm, Over-Heat Protection, Compact Design, Easy Operation & Maintenance
Included ComponentsCarafe
Operation ModeFully Automatic

9. Warranty and Support

For warranty information and customer support, please refer to the official Amazon Basics resources.

For further assistance, please contact Amazon customer service.

© 2025 Amazon. All rights reserved. Amazon Basics is a trademark of Amazon.com, Inc. or its affiliates.

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