Introduction
The STARESSO Discovery II Electric Coffee Grinder is a portable device designed for grinding coffee beans with precision. It features 48 adjustable grind settings and a durable stainless steel conical burr, suitable for various brewing methods from espresso to French press.

The STARESSO Discovery II Electric Coffee Grinder, highlighting its compact and modern design.
What's in the Box
Carefully unpack the contents and ensure all items are present:
- STARESSO Discovery II Electric Coffee Grinder
- Soft Cleaning Brush
- Stiff Cleaning Brush
- Type-C Charging Cable

All components included with the STARESSO Discovery II Electric Coffee Grinder.
Setup
Initial Charging
Before first use, fully charge the grinder. Connect the provided Type-C charging cable to the grinder and a suitable power source. A full charge takes approximately 90 minutes. The 800mAh battery provides power for multiple grinding cycles.
Assembly and Grind Adjustment
The grinder consists of several parts, including the motor unit, burr assembly, and grounds container. For initial setup, ensure all parts are securely assembled. To adjust the grind setting, locate the adjustment dial, typically found near the burr. Rotate the dial to select your desired grind size. The Discovery II offers 48 precise grind settings.

Adjusting the grind setting on the STARESSO Discovery II.

Exploded view illustrating the internal components of the grinder.
Operating Instructions
Selecting Grind Size
The STARESSO Discovery II offers 48 grind settings to accommodate various coffee brewing methods. Refer to the guide below for recommended settings:
- Espresso: 8-15 (Fine)
- STARESSO Brewer: 13-18 (Medium Fine)
- Moka Pot: 19-25 (Medium)
- Pour Over: 26-34 (Medium Thick)
- French Press: 35-40 (Coarse)
Rotate the adjustment dial to select the desired grind setting. Finer grinds are achieved by rotating towards lower numbers, and coarser grinds towards higher numbers.

Recommended grind settings for various brewing methods.
Grinding Process
- Ensure the grinder is charged and the grind setting is selected.
- Open the top lid and add up to 20 grams of whole coffee beans into the bean hopper.
- Close the lid securely.
- Press the power button to start grinding. The grinder will automatically pause once the grinding cycle is complete.
- Remove the grounds container to access your freshly ground coffee.
For optimal results, use medium to dark roast coffee beans. Light roast beans are not recommended for this grinder.
Official video demonstrating the STARESSO Discovery II Electric Coffee Grinder in use.
Official video showcasing the portability and electric grinding function of the STARESSO Discovery II.
Maintenance and Cleaning
Regular cleaning ensures optimal performance and extends the lifespan of your grinder. The grinder is designed for easy disassembly for cleaning.
Cleaning Steps
- Ensure the grinder is powered off and unplugged from any charging source.
- Disassemble the grounds container and the burr assembly.
- Use the provided soft brush to clean any residual coffee grounds from the burrs and internal components.
- Use the stiff brush for more stubborn residue.
- Wipe the exterior of the grinder with a damp cloth. Do not immerse the main unit in water.
- Allow all parts to dry completely before reassembling.

Cleaning the burr assembly with the provided brush.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Grinder does not start | Low battery; Grinder not assembled correctly | Charge the grinder fully; Ensure all parts are securely connected. |
| Inconsistent grind size | Burrs are dirty or worn; Grind setting is too coarse/fine for desired method | Clean the burrs thoroughly; Adjust grind setting according to brewing method recommendations. |
| Grinder stops during operation or makes unusual noise | Overloaded with beans; Foreign object in burrs; Internal mechanism issue | Reduce the amount of beans; Check for and remove any foreign objects; If issues persist, contact customer support. |
| Grinder mechanism detaches or spins freely | Internal locking mechanism failure | This indicates a potential mechanical failure. Discontinue use and contact STARESSO customer support for assistance. |
Specifications
- Brand: STARESSO
- Model Number: D6E
- Voltage: 5 Volts
- Battery Capacity: 800mAh
- Grind Settings: 48 adjustable settings
- Burr Type: Stainless Steel Conical Burr
- Material: 304 Stainless Steel
- Bean Capacity: Approximately 20-22 grams
- Dimensions: 60mm (Diameter) x 181mm (Height)
- Weight: 677 grams
- Charging Time: Approximately 90 minutes
Warranty and Support
The STARESSO Discovery II Electric Coffee Grinder comes with a 1-year warranty. The product is designed for a lifespan of more than 3 years with proper care and maintenance.
For warranty claims, technical support, or any questions regarding your product, please contact STARESSO customer service through their official website or the retailer where the product was purchased. Please have your model number (D6E) and proof of purchase available.

Warranty information and expected product lifespan.