1. Important Safety Instructions
Please read all instructions carefully before using your Tefal ULTRABLEND Boost VACUUM Stand Mixer. Keep this manual for future reference.
- Electrical Safety: Always ensure the voltage indicated on the appliance corresponds to your mains voltage. Do not immerse the motor unit in water or any other liquid. Unplug from outlet when not in use, before putting on or taking off parts, and before cleaning.
- Blade Safety: The blades are very sharp. Handle with extreme care when assembling, disassembling, emptying, or cleaning the jug.
- Hot Liquids: Exercise caution when blending hot liquids, as steam can escape and cause burns. Do not fill the jug beyond the maximum hot liquid level.
- Supervision: Close supervision is necessary when any appliance is used by or near children.
- Damage: Do not operate any appliance with a damaged cord or plug, or after the appliance malfunctions or has been dropped or damaged in any manner.
- Attachments: The use of attachments not recommended or sold by the manufacturer may cause fire, electric shock, or injury.
- Stability: Always operate the appliance on a dry, stable, and level surface.
2. Product Overview
The Tefal ULTRABLEND Boost VACUUM Stand Mixer (Model BL985A31) is a powerful 1300W appliance designed for versatile blending. It features Tripl'Ax® Pro technology with 6 stainless steel blades for ultra-smooth consistency and Nutrikeep™ technology to minimize oxidation by removing air from the jug.

Image: The Tefal ULTRABLEND Boost VACUUM Stand Mixer, showing the main unit with a large jug filled with green ingredients, and a smaller, empty jug to the side.
Key Features:
- Powerful 1300W Motor: Ensures efficient blending of various ingredients.
- Tripl'Ax® Pro Technology: Utilizes 6 stainless steel blades for exceptionally smooth results.
- Nutrikeep™ Technology: Removes air from the jug before blending to preserve nutrients and minimize oxidation.
- Dual Jug System: Includes one heat-resistant glass jug and one high-strength Tritan™ plastic jug, allowing for both hot and cold preparations.
- 10 Automatic Programs: Pre-set programs for a variety of recipes, including soups, smoothies, ice crush, and more.
- Intuitive Digital Display: Easy-to-use interface with color-changing display indicating jug type (blue for cold, red for hot).
3. Setup and Assembly
Before first use, wash all removable parts (jugs, lids, blades) in warm soapy water, rinse thoroughly, and dry. Ensure the motor unit is unplugged from the power outlet.
- Place the Motor Unit: Position the motor unit on a clean, dry, and stable surface.
- Assemble the Jug:
- Ensure the blade assembly is securely fitted into the bottom of the chosen jug (glass or Tritan™).
- Place the jug onto the motor unit. Align the jug handle with the front of the motor unit and twist clockwise until it locks securely into place.
- Add Ingredients: Place your desired ingredients into the jug. Do not exceed the maximum fill line indicated on the jug.
- Secure the Lid: Place the lid firmly onto the jug. Ensure the measuring cap is inserted into the lid opening.
- Connect to Power: Plug the power cord into a suitable electrical outlet.

Image: The smaller Tritan™ jug filled with chopped vegetables, ready for blending, with the main blender unit blurred in the background.
4. Operating Instructions
The Tefal ULTRABLEND Boost VACUUM Stand Mixer offers a range of automatic programs and manual control for optimal blending results.
Digital Display and Jug Recognition:
The digital display changes color to indicate the type of jug currently in use:
- Blue Screen: Indicates the cold (Tritan™) jug is mounted.
- Red Screen: Indicates the hot (glass) jug is mounted.

Image: A close-up of a hand interacting with the digital control panel of the blender, showing various program icons and the display.
Automatic Programs:
The blender features 10 pre-set programs for various preparations. Select the desired program by pressing the corresponding icon on the control panel. The blender will automatically adjust speed and time for optimal results.
- Hot Programs (5):
- Soup
- Mus (Puree)
- Warm Sauce
- Compote
- Milk (for hot milk preparations)
- Cold Programs (5):
- Ice Crush
- Smoothie
- Milkshake
- Nuts (for grinding nuts)
- Sorbet

Image: A graphic illustrating the five cold preparation icons (blue) and five hot preparation icons (orange) available on the blender.
Nutrikeep™ Vacuum Function:
For cold preparations, the Nutrikeep™ technology removes air from the jug before blending. This minimizes oxidation of ingredients, helping to preserve nutrients and maintain freshness and color.
- After placing ingredients and securing the lid, select a cold program.
- The blender will automatically initiate the vacuum process before blending begins.
- Once the vacuum is complete, the blending cycle will start.

Image: The blender with the main jug containing green ingredients, showing an arrow indicating air being removed from the top of the jug, demonstrating the vacuum function.
Manual Control:
For custom blending, use the manual speed and time controls. Refer to the digital display for current settings.
- Use the '+' and '-' buttons to adjust blending time or speed.
- Press the 'Start/Stop' button to begin or end blending.
5. Maintenance and Cleaning
Regular cleaning ensures the longevity and optimal performance of your Tefal ULTRABLEND Boost VACUUM Stand Mixer.
Daily Cleaning:
- Unplug: Always unplug the appliance from the power outlet before cleaning.
- Self-Cleaning Program: For quick cleaning, add warm water and a drop of dish soap to the jug. Select the dedicated cleaning program (if available, or use a short pulse/manual blend cycle). Run for 30-60 seconds.
- Rinse: Empty the jug and rinse thoroughly with clean water.
- Hand Wash: For a more thorough clean, disassemble the jug and blade assembly. Wash all removable parts with warm soapy water using a brush for the blades. Rinse and dry immediately.
- Motor Unit: Wipe the motor unit with a damp cloth. Never immerse the motor unit in water or other liquids.

Image: An empty, clear blender jug, ready for cleaning or storage.
Storage:
Store the blender in a dry place, away from direct sunlight and heat sources. Ensure all parts are completely dry before storing.
6. Troubleshooting
If you encounter issues with your Tefal ULTRABLEND Boost VACUUM Stand Mixer, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Blender does not turn on. | Not plugged in; jug not correctly assembled/locked; power outage. | Ensure power cord is securely plugged in. Check that the jug is properly seated and locked onto the motor unit. Check your household's power supply. |
| Ingredients are not blending smoothly. | Too little liquid; too many ingredients; ingredients too large; incorrect program selected. | Add more liquid. Reduce the amount of ingredients. Cut ingredients into smaller pieces. Select a more appropriate program or use manual control with higher speed. |
| Blender stops during operation. | Overload protection activated; jug not properly seated. | Unplug the blender, remove some ingredients, and let the motor cool down for 15-20 minutes before restarting. Ensure the jug is securely locked. |
| Vacuum function not working. | Lid not sealed properly; jug not correctly seated; vacuum seal damaged. | Ensure the lid is firmly pressed down and sealed. Check that the jug is securely locked onto the base. Inspect the vacuum seal for any damage or debris. |
If the problem persists after trying these solutions, please contact customer support.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Tefal |
| Model Number | BL985A31 |
| Power | 1300 Watts |
| Color | Black-Silver |
| Product Dimensions | 63 x 31 x 40 cm |
| Item Weight | 9.82 Kilograms |
| Jug Material (Hot) | Heat-resistant Glass |
| Jug Material (Cold) | High-strength Tritan™ Plastic |
| Blade Technology | Tripl'Ax® Pro (6 stainless steel blades) |
| Special Features | Nutrikeep™ Vacuum Function, 10 Automatic Programs |
8. Warranty and Support
For warranty information and customer support, please refer to the documentation provided with your product or visit the official Tefal website for your region. Please note that availability of spare parts and specific customer service channels may vary by country.
For general inquiries or to find local service centers, you may visit the Tefal Store on Amazon or the official Tefal website.







