How to Clean and Maintain a Small Eagle Coffee Grinder

If your coffee grinder leaves behind old coffee oils, clogged burrs, or inconsistent grind sizes, it’s time for a deep clean—especially if you’re brewing pour-over or espresso regularly. A dirty grinder doesn’t just taste bad; it ruins extraction. Here’s how to clean and maintain a Small Eagle-style grinder (like the common home model Feima 600N) the right way.

To properly clean your Small Eagle or Feima 600N grinder, disassemble and brush it every 2–3 days, especially the burr chamber and feeder. Full cleaning takes under 10 minutes with basic tools. Backflush the burrs and reassemble carefully to maintain optimal grind performance.

What Is the Small Eagle Grinder?

The Small Eagle is a compact, home-use coffee grinder, similar in design and function to the Feima 600N. It’s widely used among specialty coffee enthusiasts for grinding beans for pour-over, French press, and other manual brew methods. Though not designed for high-volume commercial use, its build and functionality make it a solid choice for daily home brewing. Many of the cleaning and maintenance steps also apply to other small commercial-style grinders at home.

Key Parts of the Grinder

Understanding the parts makes cleaning faster and prevents damage. Here’s what you’ll work with:

• Bean Hopper: The funnel-shaped container that holds whole coffee beans; includes a lid.
• Grind Adjustment Knob: Adjusts from setting 1 (finest) to 8 (coarsest); rotate to change grind size.
• Burr Set: The grinding mechanism. Includes a front burr (connected to the screw-on auger/feeder) and rear fixed burr. The front burr assembly can be removed for cleaning. The rear is fixed. Note: there is a spring and a 4mm square key on the shaft.
• Adjustment Mechanism: Located under the center screw of the grind adjustment cap; controls grind fineness.
• Ground Coffee Container: An opaque box with a lid and a single hole for dispensing grounds.

How to Use the Grinder

Using the grinder properly ensures consistent results and easier cleaning later.

• Plug in the grinder (110V power).
• Measure your beans and load them into the hopper.
• Set your grind size. For pour-over, start around 3.5.
• Turn the grinder on.
• Pour beans in while catching the grounds in a cup until no more grinding sound is heard.
• Turn off the grinder and remove the ground coffee.

How to Clean the Grinder After Use

Cleaning after each use extends burr life and keeps flavors clean.

1. Gather tools: screwdriver, brush, and a small container to catch loose grounds.
2. Brush off external surfaces.
3. Loosen the grind adjustment knob screws evenly (left then right) to detach it.
4. Remove the adjustment knob to access internal parts. Brush all accessible parts clean.

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   • Tip: Remove the feeder (auger) and clean out trapped coffee grounds.

   

5. Check that all disassembled parts are thoroughly cleaned.
6. Reassemble in order: spring, 4mm square key, burr set.
7. Reattach the feeder and test that it moves smoothly.
8. Reinstall the grind adjustment knob, ensuring the arrow faces upward.
9. Tighten the screws evenly.

How to Adjust the Grind Size

If your coffee is too fine or too coarse, tweak the grind setting.

• Remember your current setting before adjusting.
• Unscrew the adjustment cap center screw.
• The black adjustment disc turns clockwise (to the right) to make the grind finer.
  • If your current setting is too coarse, turn the disc right a few notches for a finer grind.

Frequently Asked Questions

How often should I clean my Small Eagle grinder?

Clean the exterior after each use with a brush. Perform a full internal cleaning (including burr and feeder disassembly) every 2–3 days if used daily. Regular cleaning prevents coffee oil buildup and maintains grind consistency.

What grind size should I use for pour-over?

For pour-over brewing methods, start with a grind setting around 3.5 on the Small Eagle grinder. Adjust finer or coarser based on brew time and taste.

Can I wash the burrs or internal parts with water?

No, do not use water to clean the burrs or any internal mechanical parts. Always clean with a brush and dry tools. Water can cause rust or damage the burr alignment.

Is the Small Eagle grinder suitable for espresso?

The Small Eagle (like the Feima 600N) can be used for espresso, but it’s better suited for pour-over, French press, and other coarse to medium-fine brews. For espresso, more precise grinders are recommended.

What tools do I need to clean the grinder?

You’ll need a small Phillips or flathead screwdriver, a stiff brush (usually supplied with the grinder), and a small container to collect the coffee grounds during disassembly.

How do I know if my grind size is off?

If your coffee brews too fast or tastes sour, the grind may be too coarse. If it brews too slow or tastes bitter, it may be too fine. Adjust the grind setting accordingly and taste-test.

Recommended FrontStreet Coffee for Pour-Over

For pour-over brewing with your Small Eagle grinder, try FrontStreet Coffee’s Ethiopia Humbera—bright with citrus and floral notes—or Yirgacheffe, offering juicy berry and stone fruit tones. Both shine at a 3.5 grind setting. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.