1. Introducción
This manual provides instructions for the safe and efficient use of your WMF Impulse Insulated Thermos Flask. This 1.0 L flask is designed to maintain the temperature of hot or cold beverages for extended periods, featuring a pressure closure for convenient pouring.

Figure 1: WMF Impulse Insulated Thermos Flask, black, 1.0 L capacity.
2. Instrucciones de seguridad
- Do not use for carbonated beverages, as pressure buildup may cause the lid to eject forcefully.
- Manténgase fuera del alcance de los niños cuando esté lleno de líquidos calientes.
- Handle the glass insert with care, as it is fragile. Avoid dropping or subjecting the flask to strong impacts.
- Ensure the lid is securely closed before transporting to prevent spills.
- Do not place the flask in a microwave oven or conventional oven.
- Do not immerse the entire flask in water for cleaning; refer to the 'Maintenance and Cleaning' section.
3. Contenido del paquete
Verifique que todos los componentes estén presentes en el paquete:
- 1x WMF Impulse Insulated Thermos Flask (1.0 L capacity)
- 1x Lid with automatic pressure closure
- 1x Glass insert (pre-installed)

Figura 2: Embalaje del producto.
4. Configuración (primer uso)
Before first use, thoroughly clean the flask and its components.
- Unscrew and remove the lid from the flask.
- Wash the flask interior and lid with warm water and a mild detergent. Rinse thoroughly.
- Deje que todas las piezas se sequen al aire por completo antes de volver a montarlas.

Figure 3: Removing the lid for cleaning or filling.
5. Instrucciones de funcionamiento
5.1 Llenado del matraz
- Retire la tapa.
- Pour your desired hot or cold beverage into the flask. Do not overfill; leave a small space below the rim.
- For optimal temperature retention, pre-warm the flask with hot water for hot beverages or pre-chill with cold water for cold beverages before filling.
5.2 Cierre de la tapa
- Place the lid back onto the flask and screw it on clockwise until it is securely tightened.
- The pressure closure mechanism is activated by a central button.

Figure 4: Activating the pressure closure by pressing the central button.
5.3 Vertido
- To pour, press the central button on the lid. This opens the pouring mechanism.
- Tilt the flask to pour the beverage.
- After pouring, press the central button again to close the mechanism. This ensures the flask is sealed and leakproof.

Figure 5: Pouring a beverage from the flask.

Figure 6: The flask is designed for drip-free pouring.
6. Insulation Performance
The WMF Impulse flask features ThermaPro insulation with a high-quality glass core, designed to keep contents hot or cold for up to 24 hours.

Figure 7: 24-hour hot and cold retention.
7. Mantenimiento y limpieza
7.1 Limpieza general
- After each use, rinse the flask interior and lid with warm water.
- For thorough cleaning, use a bottle brush with warm soapy water.
- Do not use abrasive cleaners, scouring pads, or bleach, as these can damage the flask's finish or interior.
- The exterior can be wiped clean with a damp paño.
- Asegúrese de que todas las piezas estén completamente secas antes de guardarlas para evitar olores o moho.
7.2 Glass Insert Replacement
The glass insert is replaceable. To access it:
- Turn the flask upside down.
- Locate the screw mechanism at the bottom of the flask.
- Unscrew the base to release the glass insert.
- Carefully remove the old insert and replace it with a new one.
- Re-secure the base by screwing it back on.

Figure 8: Accessing the glass insert by unscrewing the base.

Figura 9: Abajo view of the flask with the screw mechanism.
8. Solución de problemas
- Retención de temperatura deficiente: Ensure the lid is securely tightened and the pressure closure button is in the closed position. Pre-warming or pre-chilling the flask before filling can improve performance.
- Fugas: Check that the lid is properly screwed on and the pressure closure button is fully engaged in the closed position. Inspect the lid's silicone seal for any damage or misalignment.
- Dificultad para verter: Ensure the pressure closure button is pressed to the open position before attempting to pour.
9. Especificaciones
| Característica | Especificación |
|---|---|
| Marca | FMI |
| Nombre del modelo | Impulso |
| Número de modelo del artículo | 690697390 |
| Capacidad | 1 litros |
| Material | Stainless Steel (exterior), Glass (interior) |
| Color | Negro |
| Características especiales | Insulated, Leakproof, Pressure Closure |
| Dimensiones del producto | 11.42" de ancho x 9.45" de alto (aproximadamente) |
| Peso del artículo | 1.03 kilogramos (2.26 libras) |
10. Garantía y soporte
For warranty information or product support, please refer to the documentation provided at the time of purchase or contact WMF customer service directly. Keep your proof of purchase for any warranty claims.