Introduction
Thank you for choosing the TIMEMORE Chestnut C3S PRO Manual Coffee Grinder. This manual provides essential information for the proper setup, operation, maintenance, and troubleshooting of your new coffee grinder. Please read these instructions carefully before use to ensure optimal performance and longevity of your device.

Image: The TIMEMORE Chestnut C3S PRO Manual Coffee Grinder, showcasing its sleek black design and attached foldable handle.
Product Overview
The TIMEMORE Chestnut C3S PRO is designed for precision coffee grinding, featuring durable materials and user-friendly design elements.
Key Features:
- S2C Patent Conical Burr: Ensures consistent and even grind size for optimal flavor extraction.
- All-Metal Aluminum Alloy Body: Provides durability, longevity, and efficient heat dissipation.
- Adjustable Grind Setting: Allows precise control over grind coarseness for various brewing methods.
- Foldable Crank Handle: Enhances portability and saves storage space.
- Non-Slip Silicone Bottom: Improves stability during grinding.
Components:
- Grinder Body (Upper part with burr assembly)
- Grounds Catcher (Lower part)
- Foldable Crank Handle
- S2C Conical Burr (Internal)
- Grind Adjustment Dial (Internal, at the bottom of the burr assembly)

Image: Detailed view of the S2C conical burr, highlighting its precision design for consistent grinding.

Image: The integrated all-metal aluminum alloy body of the C3S PRO, emphasizing its robust construction.
Setup
Before first use, ensure all components are clean and properly assembled.
- Unpack: Carefully remove all parts from the packaging.
- Initial Cleaning: Wipe down the exterior with a damp cloth. Use the included brush to clean the burrs and grounds catcher. Do not wash the main body or burr assembly with water.
- Assemble:
- Attach the foldable crank handle to the top shaft of the grinder. Ensure it is securely seated.
- Twist the grounds catcher onto the bottom of the grinder body until it is firmly attached.
For a visual guide on assembly and disassembly, please refer to the official product video below:
Video: Official TIMEMORE C3S PRO Manual Coffee Grinder overview, demonstrating assembly, features, and use.
Operating Instructions
1. Adjusting Grind Size:
The C3S PRO features an adjustable grind setting mechanism located at the bottom of the burr assembly. To adjust:
- Unscrew the grounds catcher from the main body.
- Locate the grind adjustment dial at the bottom of the burr.
- Turn the dial clockwise for a finer grind and counter-clockwise for a coarser grind. Each "click" represents a step in adjustment.
- Refer to the table below for recommended starting points for common brewing methods.

Image: Visual guide to grind settings, showing recommended click counts for different coffee preparations.
| Brewing Method | Recommended Clicks | Grind Type |
|---|---|---|
| Espresso | 7-8 clicks | Very Fine |
| Pour Over | 13-16 clicks | Medium |
| French Press | 17-20 clicks | Coarse |
Note: These are starting recommendations. Adjust based on your specific beans, brewing equipment, and personal preference.
2. Grinding Coffee Beans:
- Load Beans: Remove the handle and the top cap. Pour your desired amount of whole coffee beans into the hopper. Replace the top cap and handle.
- Grind: Hold the grinder firmly with one hand (the anti-slip body and silicone base provide a good grip). Turn the crank handle clockwise with the other hand to begin grinding.
- Collect Grounds: Continue grinding until all beans have passed through the burrs. Unscrew the grounds catcher to retrieve your freshly ground coffee.

Image: A user demonstrating the firm grip on the TIMEMORE C3S PRO, highlighting its anti-slip design and silicone base for stability during grinding.
Maintenance and Cleaning
Regular cleaning ensures consistent performance and extends the life of your grinder.
- Daily Cleaning: After each use, tap the grinder gently to dislodge any remaining coffee grounds. Use the included brush to clean the burrs and the inside of the grounds catcher.
- Deep Cleaning (Periodically):
- Disassemble the grounds catcher and the burr assembly (refer to the setup section or video for disassembly).
- Use the brush to thoroughly clean all parts, paying special attention to the burrs to remove any accumulated coffee oils or fine particles.
- Important: Do not wash the burr assembly or main body with water. Water can cause rust and damage the precision components. Only use the brush for cleaning these parts.
- Wipe the exterior with a dry or slightly damp cloth.
- Ensure all parts are completely dry before reassembling.

Image: The TIMEMORE C3S PRO disassembled for cleaning, illustrating the use of the included brush and a clear warning against washing the internal components with water.
Troubleshooting
If you encounter issues with your grinder, refer to the following common problems and solutions:
- Grinder feels stiff or difficult to turn:
- Ensure no foreign objects are in the burr chamber.
- Check if the grind setting is too fine for the beans being used. Try a coarser setting.
- Perform a thorough cleaning of the burrs to remove any build-up of coffee oils or fine particles.
- Inconsistent grind size:
- Verify that the grind adjustment dial is securely set and has not shifted during grinding.
- Ensure the burr assembly is clean and free from obstructions.
- Check for any loose components. If the central shaft feels wobbly, contact support.
- Beans are not feeding into the burrs:
- Ensure the hopper is not overfilled.
- Check if the beans are too oily or large for the initial grind setting.
Specifications
| Feature | Detail |
|---|---|
| Model Number | C3S PRO BLACK-US |
| Brand | TIMEMORE |
| Burr Type | S2C Conical Burr (Stainless Steel) |
| Body Material | Aluminum Alloy |
| Item Weight | 1.63 pounds (approx. 739g) |
| Package Dimensions | 7.48 x 5.55 x 2.72 inches |
| Specific Uses | Coffee Grinding (Espresso, Pour Over, French Press, etc.) |
Warranty and Support
For warranty information and customer support, please refer to the documentation included with your purchase or visit the official TIMEMORE website. Keep your proof of purchase for any warranty claims.
If you experience any issues not covered in this manual, please contact TIMEMORE customer service for assistance.





