1. Introduction
Thank you for purchasing the KOIOS 400W Personal Blender. This manual provides important information on how to safely operate, maintain, and troubleshoot your new appliance. Please read it thoroughly before first use and keep it for future reference.
Key Features:
- Powerful 400W Motor: Ensures efficient blending and nutrient extraction.
- Versatile Blade System: Includes a 6-blade assembly for blending and a 1-blade assembly for grinding.
- High-Speed Rotation: Achieves up to 25,000 rotations per minute for smooth results.
- Dual Portable Cups: Two 500ml blending cups with travel lids for on-the-go convenience.
- Grinding Capability: A 300ml grinding cup for coffee beans, spices, and nuts.
- Safety Features: Equipped with overheat protection and a safety lock mechanism.
- Food-Grade Materials: Constructed from BPA-free, non-toxic, and safe materials.
- Easy to Clean: Detachable parts for simple and thorough cleaning.

Image: The KOIOS Personal Blender with its various attachments, showcasing its versatility.
2. Product Components
Your KOIOS Personal Blender package includes the following parts:
- Blender Base (Motor Unit): The main power unit.
- 6-Blade Assembly: For blending fruits, vegetables, and ice.
- 1-Blade Assembly: For grinding dry ingredients like coffee beans.
- 500ml Blending Cups (x2): Large capacity cups for smoothies and juices.
- 300ml Grinding Cup (x1): Smaller cup specifically for grinding.
- Travel Lids (for 500ml cups): Allows you to take your drinks on the go.
- User Manual: This instruction guide.

Image: Detailed view of the blade assemblies, safety lock, and ventilation features.
3. Setup
Before first use, wash all detachable parts (cups, lids, blade assemblies) with warm soapy water, rinse thoroughly, and dry completely.
Assembly Steps:
- Place the blender base on a clean, dry, and stable surface. Ensure it is near a power outlet.
- Choose the appropriate cup (500ml for blending, 300ml for grinding) and blade assembly (6-blade for blending, 1-blade for grinding).
- Add your desired ingredients into the cup. Do not exceed the MAX fill line. For blending with ice, always add liquid along with the ice.
- Screw the chosen blade assembly firmly onto the open end of the cup, ensuring a tight seal.
- Invert the cup and blade assembly, then align the tabs on the cup with the slots on the blender base.
- Press down gently and twist the cup clockwise until it locks securely into place. The blender will not operate unless the cup is properly locked.
Image: Visual guide for preparing and blending ingredients.
4. Operation
Blending (Smoothies, Juices, Shakes):
- Use the 500ml blending cup and the 6-blade assembly.
- Add your desired fruits, vegetables, and liquid. For best results, ensure there is enough liquid to cover the blades.
- Securely attach the blade assembly to the cup and lock the cup onto the blender base as described in the Setup section.
- Plug the blender into a power outlet.
- Press and hold the power button (or twist the cup further if it's a twist-to-activate model) to start blending.
- Blend for approximately 30-60 seconds, or until your desired consistency is achieved.
- Important: Do not operate the blender continuously for more than 1 minute to prevent overheating. If blending for longer, allow the motor to rest for at least 20 minutes between cycles.
- Once blending is complete, release the button (or twist the cup counter-clockwise to unlock) and unplug the unit.
- Remove the cup, unscrew the blade assembly, and attach a travel lid if taking your drink on the go.
Grinding (Coffee Beans, Spices, Nuts):
- Use the 300ml grinding cup and the 1-blade assembly.
- Add dry ingredients such as coffee beans, pepper, or small nuts. Do not add any liquids when grinding.
- Securely attach the 1-blade assembly to the grinding cup and lock the cup onto the blender base.
- Plug the blender into a power outlet.
- Operate in short pulses (5-10 seconds at a time) until the desired fineness is achieved.
- After grinding, release the button (or twist to unlock) and unplug the unit.
- Carefully remove the cup and detach the blade assembly.
Image: Blending helps maximize nutrient absorption from fruits and vegetables.
5. Maintenance and Cleaning
Proper cleaning and maintenance will extend the life of your blender.
Cleaning Steps:
- Always unplug the blender from the power outlet before cleaning.
- Separate the cup, blade assembly, and travel lid from the motor base.
- Rinse the cups, lids, and blade assemblies under running water immediately after use. Use a mild dish soap and a brush to clean around the blades carefully.
- Do NOT immerse the motor base in water or any other liquid. Wipe the motor base with a damp cloth to clean it.
- Ensure all parts are thoroughly dried before reassembling or storing to prevent rust and odor.
Storage:
Store the blender and its components in a dry, clean place away from direct sunlight and moisture.
Image: Easy cleaning of the detachable blade assembly and cup.
6. Troubleshooting
If you encounter any issues with your blender, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Blender does not start. | Cup not properly locked onto the base. Power cord not plugged in. Overheat protection activated. | Ensure the cup is twisted clockwise until securely locked. Check if the power cord is firmly plugged into a working outlet. Unplug the blender and let it cool down for at least 20 minutes. |
| Burning smell or motor is hot. | Overloading or continuous operation. | Unplug immediately. Reduce the amount of ingredients or add more liquid. Let the unit cool for 20 minutes before resuming. Do not operate for more than 1 minute continuously. |
| Leaking from the cup. | Blade assembly not tightened. Sealing ring improperly placed or damaged. Overfilling the cup. | Ensure the blade assembly is screwed on tightly. Check the sealing ring for proper placement and any damage. Do not fill ingredients beyond the MAX line. |
| Ingredients not blending smoothly. | Insufficient liquid. Too many solid ingredients. Ingredients stuck. | Add more liquid. Reduce the amount of solid ingredients. Briefly remove the cup, shake it, and reattach to redistribute ingredients. |
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | BL219B |
| Power | 400W |
| Rotation Speed | Up to 25,000 r/min |
| Blending Cup Capacity | 500 ml |
| Grinding Cup Capacity | 300 ml |
| Blade Material | 304 Stainless Steel |
| Cup Material | Food-grade PC |
| Base/Blade Cover Material | High-quality ABS |
| Motor Material | Pure Copper |
| Package Dimensions | 29.5 x 24.5 x 12.7 cm |
| Package Weight | 1.95 kg |
8. Warranty and Support
Your KOIOS Personal Blender comes with a 1-year manufacturer's warranty from the date of purchase.
This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from misuse, accidents, unauthorized modifications, or failure to follow the instructions in this manual.
If you experience any issues with your product, especially initial defects, please contact our customer support team. Please have your purchase information and model number (BL219B) ready when contacting support.
For further assistance or inquiries, please refer to the contact information provided with your purchase or visit the official KOIOS website.





