1. Important Safety Instructions
Please read these instructions carefully before using your Bosch TWK1M121 electric kettle and keep them for future reference. Failure to follow these safety guidelines may result in electric shock, fire, or injury.
- Electrical Safety: Ensure the voltage indicated on the appliance matches your local mains voltage before connecting. Do not immerse the kettle, power base, cord, or plug in water or any other liquid. Do not operate the kettle with a damaged cord or plug.
- Placement: Always place the kettle on a stable, flat, heat-resistant surface, away from the edge of the countertop. Keep away from hot surfaces, open flames, and direct sunlight.
- Filling: Do not fill the kettle above the maximum fill line or below the minimum fill line. Overfilling may cause boiling water to spill out.
- Operation: Do not open the lid while water is boiling. Steam can cause severe burns. Always ensure the lid is securely closed before operating.
- Children: This appliance can be used by children aged 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children unless they are older than 8 and supervised.
- Cleaning: Always unplug the kettle from the power outlet and allow it to cool completely before cleaning.
- Intended Use: This kettle is intended for boiling water only. Do not use it for heating other liquids or food.
2. Product Overview
Familiarize yourself with the components of your Bosch TWK1M121 electric kettle.

Image: The Bosch TWK1M121 electric kettle in white, shown on a kitchen counter. Circular insets highlight key features: the removable filter inside the spout, the lid opening button on the handle, and the red power switch at the base.
Components:
- Kettle Body: The main container for water.
- Lid: Covers the top opening of the kettle.
- Handle: Ergonomically designed for safe pouring.
- Water Level Indicator: Transparent window with markings to show water volume.
- Power Switch: Activates the heating element.
- 360° Power Base: Allows the kettle to be placed from any angle. Includes cable storage.
- Removable Limescale Filter: Located in the spout to prevent limescale particles from entering your cup.
3. Setup
- Unpack: Carefully remove all packaging materials and dispose of them responsibly.
- Initial Cleaning: Before first use, wipe the exterior of the kettle with a damp cloth.
- Rinse Interior: Fill the kettle with water up to the maximum mark, boil it, and then discard the water. Repeat this process 2-3 times to remove any manufacturing residues.
- Position the Base: Place the 360° power base on a dry, flat, and stable surface. Ensure the power cord is not dangling or in a position where it can be tripped over.
4. Operating Instructions

Image: A close-up composite image of the Bosch TWK1M121 kettle. It shows the water level indicator on the side, the lid opening mechanism, and the red power switch in detail.
- Fill the Kettle: Press the lid release button to open the lid. Fill the kettle with the desired amount of fresh water. Ensure the water level is between the minimum (0.25 L) and maximum (1.7 L) marks on the water level indicator.
- Close the Lid: Close the lid firmly until it clicks into place.
- Place on Base: Position the kettle securely onto its 360° power base.
- Connect to Power: Plug the power cord into a suitable electrical outlet (220-240V).
- Switch On: Press the power switch (red lever) downwards. The indicator light will illuminate, signifying that the kettle is heating.
- Automatic Shut-off: The kettle will automatically switch off once the water has boiled. The indicator light will turn off.
- Pouring: Carefully lift the kettle from the base and pour the hot water. Be cautious of steam.
- Keep Warm Function (if applicable): Some models may feature a 'Keep Warm' function. If present, activate it by pressing the designated button after boiling. Refer to specific model instructions for details.
5. Maintenance and Cleaning
Regular cleaning and maintenance will prolong the life of your kettle and ensure optimal performance.
Exterior Cleaning:
- Always unplug the kettle and allow it to cool completely before cleaning.
- Wipe the exterior with a soft, damp cloth. Do not use abrasive cleaners, scouring pads, or harsh chemicals, as these can damage the surface.
Limescale Filter Cleaning:
- The kettle is equipped with a removable limescale filter in the spout.
- To remove, open the lid and gently pull the filter upwards or slide it out (refer to the diagram in Section 2).
- Rinse the filter under running water, brushing gently with a soft brush if necessary to remove limescale deposits.
- Reinsert the clean filter, ensuring it is securely in place.
Descaling:
Limescale buildup can affect performance and energy efficiency. Descale your kettle regularly, especially in hard water areas.
- You can use a commercially available descaling agent suitable for kettles. Follow the manufacturer's instructions carefully.
- Alternatively, you can use a natural descaling solution: fill the kettle with a mixture of white vinegar and water (e.g., 1 part vinegar to 2 parts water) or lemon juice and water. Let it stand for an hour or boil the solution.
- After descaling, empty the kettle and rinse it thoroughly several times with fresh water to remove any residue or taste.
6. Troubleshooting
If you encounter any issues with your kettle, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Kettle does not heat up. | No power supply. Kettle not properly seated on base. Power switch not activated. | Check if the plug is securely in the outlet. Ensure the kettle is correctly placed on the power base. Press the power switch down until the indicator light illuminates. |
| Kettle switches off too soon. | Limescale buildup. Kettle overfilled. | Descale the kettle (refer to Section 5). Ensure water level is below the maximum mark. |
| Water tastes strange or has particles. | New appliance residue. Limescale buildup. Filter not in place. | Perform initial cleaning (boil and discard water 2-3 times). Descale the kettle. Ensure the limescale filter is correctly inserted. |
| Steam escaping from lid. | Lid not closed properly. | Ensure the lid is securely closed before boiling. |
7. Technical Specifications
- Model: TWK1M121
- Reference Number: S71002989
- Brand: Bosch
- Capacity: 1.7 Liters
- Power: 2400 Watts
- Voltage: 220-240 V
- Material: Plastic (Durable and easy to maintain)
- Color: White (Other colors may be available for the series)
- Dimensions (L x W x H): Approximately 54.5 x 23.5 x 26.5 cm
- Weight: Approximately 1.2 kg
- Special Features: Automatic shut-off, Button control, Keep Warm function, 360° rotating base, Removable filter, Water level indicator, Cable storage.
- Components Included: Kettle, Power Base, Filter.
8. Customer Support
For further assistance, spare parts, or warranty information, please contact Bosch customer service. You can find regional contact details and support resources on the official Bosch website.
Please have your model number (TWK1M121) and reference number (S71002989) ready when contacting support.