1. Important Safety Instructions
Please read all instructions carefully before using the TWOMEOW CG638 Electric Coffee Grinder. Retain this manual for future reference.
- Ensure the appliance is unplugged before cleaning or when not in use.
- Do not immerse the motor base in water or other liquids.
- Keep hands and utensils away from the blades during operation to prevent injury.
- This appliance is not intended for use by persons with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
- Do not operate the grinder with a damaged cord or plug.
- Use only attachments recommended or sold by the manufacturer.
2. Product Overview
The TWOMEOW CG638 Electric Coffee Grinder is designed for grinding coffee beans and various dry ingredients. It features adjustable grind settings and a removable stainless steel bowl for convenience.
Components:
- Motor Base
- Removable Stainless Steel Grinding Bowl with Blades
- Transparent Lid
- Timing/Grind Selector Knob
- Start Button
- Cleaning Brush/Scoop

Image: The TWOMEOW CG638 Electric Grinder, highlighting its adjustable features.
3. Setup
- Unpack: Carefully remove all components from the packaging.
- Clean: Before first use, wash the removable stainless steel grinding bowl and lid with warm, soapy water. Rinse thoroughly and dry completely. Wipe the motor base with a damp cloth.
- Assemble: Place the clean, dry grinding bowl onto the motor base. Rotate the bowl clockwise until it locks securely into place, aligning with the lock icon.
- Add Ingredients: Add your desired amount of coffee beans or dry ingredients into the grinding bowl. Do not exceed the MAX fill line.
- Secure Lid: Place the transparent lid onto the grinding bowl. Rotate the lid clockwise until it is aligned with the lock icon, ensuring it is securely closed. The grinder will not operate if the lid is not properly locked.

Image: Key features for setup and safety: removable bowl, anti-splash lid, and safety lock mechanism.
4. Operating Instructions
The TWOMEOW CG638 offers 10 grind settings and automatic grinding for various preferences.
- Select Grind Setting: Turn the timing knob to select your desired grind fineness. The knob has marks from 5 to 30 seconds, corresponding to 10 grind selectors from coarse to fine. For example, shorter times (5-10s) typically yield coarser grinds suitable for French press or cold brew, while longer times (20-30s) produce finer grinds for espresso.
- Start Grinding: Once the grinding bowl and lid are securely locked, press the start button located on the front of the unit. The grinder will automatically operate for the selected duration.
- Automatic Stop: The grinder will automatically stop once the set grinding time is complete, freeing your hands during the process.
- Check Grind: After the grinder stops, unplug the unit for safety. Carefully remove the lid and then the grinding bowl to check the consistency of your grind.
Tips for Optimal Grinding:
- Quiet Operation: This grinder operates at a low noise level of approximately 63dB, allowing for quiet use at any time of day.
- Versatility: Beyond coffee beans, this grinder can process other dry ingredients such as spices (pepper, cumin, cinnamon, star anise), beans (soybeans, quinoa, sorghum, rice), and herbs (mint, parsley, fenugreek).
- Even Grinding: The powerful motor and sharp stainless steel blades ensure rapid and even grinding.

Image: Step-by-step guide for easy operation: adding beans, setting time, pressing start, and pouring grounds.

Image: Detail of the 10 grind selectors and timing knob, showing options from coarse to fine.
5. Maintenance and Cleaning
Regular cleaning ensures optimal performance and longevity of your grinder.
- Unplug: Always unplug the grinder from the power outlet before cleaning.
- Remove Grinding Bowl: Rotate the grinding bowl counter-clockwise to unlock and lift it from the motor base.
- Empty Grounds: Carefully pour out the ground coffee or ingredients. Use the included cleaning brush/scoop to remove any remaining particles from the bowl and blades.
- Wash Components: The removable stainless steel grinding bowl and lid can be washed with warm, soapy water. Rinse thoroughly and dry completely before reassembling.
- Clean Motor Base: Wipe the exterior of the motor base with a soft, damp cloth. Do not immerse the motor base in water.
- Reassemble: Once all parts are dry, reattach the grinding bowl to the motor base, ensuring it locks into place. Secure the lid.

Image: Visual representation of easy cleaning features and sharp, durable stainless steel blades.
6. Troubleshooting
If you encounter any issues with your TWOMEOW CG638 Electric Coffee Grinder, please refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Grinder does not start. | 1. Power cord not plugged in. 2. Lid or grinding bowl not securely locked. 3. Overheating protection activated. | 1. Ensure the power cord is firmly plugged into a working outlet. 2. Make sure both the grinding bowl and lid are rotated and locked into place. 3. Unplug the unit and let it cool down for 30 minutes before restarting. |
| Inconsistent grind. | 1. Incorrect grind setting for desired consistency. 2. Overfilling the grinding bowl. | 1. Adjust the timing knob to a longer duration for a finer grind or shorter for a coarser grind. 2. Do not exceed the MAX fill line. Grind in smaller batches if necessary. |
| Excessive noise during operation. | Loose components or foreign objects. | Unplug the grinder and check if the grinding bowl and lid are properly secured. Ensure no foreign objects are inside the grinding bowl. |
7. Specifications
| Feature | Detail |
|---|---|
| Brand | TWOMEOW |
| Model Number | CG638 |
| Color | Black |
| Style | Adjustable |
| Product Dimensions | 4"L x 4"W x 9"H |
| Capacity | 2.5 ounces (approx. 10 cups of coffee) |
| Material | Stainless Steel |
| Voltage | 230 Volts |
| Item Weight | 2.5 ounces |
| UPC | 798269688717 |
8. Warranty and Support
TWOMEOW products are manufactured with quality and care. For warranty information or technical support, please refer to the product packaging or contact TWOMEOW customer service directly. Keep your purchase receipt as proof of purchase.
For further assistance, please visit the TWOMEOW Store on Amazon.