How to Clean a Coffee Grinder

Cleaning a commercial coffee grinder is an essential task that ensures the quality and longevity of your coffee equipment. Regular cleaning helps remove coffee residues, oils, and other contaminants that can affect the flavor of your coffee and lead to equipment malfunctions. We will guide you through the step-by-step process of cleaning a commercial coffee grinder to maintain its performance and efficiency, ultimately providing your customers with a consistently delicious cup of coffee.

Shop All Commercial Coffee Grinders

Types of Coffee Grinders

Coffee grinders crush down coffee beans into a consistent and uniform size, allowing for optimal extraction of flavor and aroma during the brewing process. There are two main types of coffee grinders available on the market: blade grinders and burr grinders. Each type has unique features and benefits, making them suitable for different settings.

Coffee grinder with coffee beans
  • Burr Grinder: A burr grinder is a more precise and advanced option for grinding coffee beans. It features two burrs, either conical or flat, that crush the coffee beans between them. The distance between the burrs can be adjusted to achieve the desired grind size. Burr grinders are perfect for commercial settings because they offer a greater degree of control, allowing users to adjust it according to their coffee brewing method, whether it is espresso, French press, or pour-over.
  • Blade Grinder: A blade grinder is the most basic and budget-friendly option available for grinding coffee beans. It consists of a spinning blade that chops the coffee beans into smaller pieces. The fineness of the grind is determined by the length of time the grinder is operated. Blade grinders are generally more compact, making them suitable for smaller commercial spaces with limited countertop areas or residential settings.

Regardless of the type of coffee grinder you own, it is important to clean it regularly to keep oils and coffee build-up from clogging your machine, resulting in an off-putting flavor for your coffee.

How to Clean a Burr Grinder

Burr grinders are a popular choice for commercial coffee applications due to their consistency and precision in grinding coffee beans. To maintain the quality of your coffee and extend the lifespan of your equipment, it is essential to clean your burr grinder regularly. You’ll want to clean away the residual coffee grinds from the machine each day, but a deeper clean is necessary to keep it running efficiently.


Here is a step-by-step guide for cleaning a burr coffee grinder:

Cleaning parts of a coffee grinder using a brush tool
  1. Unplug the Grinder: Before you start cleaning, make sure to unplug the grinder from the power source. This will ensure your safety throughout the cleaning process.
  2. Disassemble the Grinder: Begin by removing and emptying the hopper and any removable parts from the grinder. This may include the burrs, grind chamber, and coffee chute. Refer to your grinder's manual for specific instructions on disassembly.
  3. Brush the Burrs: The burrs are the primary grinding components of a burr grinder, and they tend to accumulate coffee residue and oils over time. Use a stiff brush or a dedicated grinder cleaning brush to remove any coffee particles from the burrs. Gently brush in circular motions to ensure thorough cleaning.
  4. Vacuum or Blow Out the Grind Chamber: After brushing the burrs, use a vacuum cleaner or compressed air to remove any loose coffee grounds from the grind chamber. Be cautious not to vacuum up loose screws or blow coffee particles into other parts of the grinder or your surroundings.
  5. Clean the Coffee Chute: Wipe the coffee bean chute with a cotton swab to remove any residue.
  6. Clean the Removable Parts: Wipe the removable parts, such as the hopper and coffee chute, with a rag, non-abrasive sponge, or brush and soapy water. Pay close attention to the nooks and crannies where coffee residue may accumulate.
  7. Wipe the Soap: Using a wet rag, wipe away the soap and residue from the removable parts.
  8. Dry the Parts: Once cleaned, place the removable parts on a clean towel or drying rack to air dry completely. Ensure that they are dried thoroughly before reassembling the grinder.
  9. Clean the Exterior: Wipe down the exterior of the grinder using a damp cloth or sponge. Avoid using abrasive cleaners or solvents as they may damage the finish of the grinder.
  10. Reassemble the Grinder: Once all the parts are dry, reassemble the grinder according to the manufacturer's instructions. Ensure that everything is securely in place before plugging the grinder back into the power source.

Remember to always consult your grinder's manual for specific cleaning instructions and recommendations from the manufacturer. Contact a certified technician if you are experiencing issues after reassembly.

How to Clean a Blade Grinder

If you only prepare small batches of coffee in your establishment, you may own a compact blade grinder instead of a burr unit. To clean a blade coffee grinder, follow these simple steps:

  1. Fill the Grinder with Rice: Begin by filling the grinder's hopper with a handful of uncooked rice. Rice is an excellent natural abrasive that helps remove coffee residue and oils from the blades.
  2. Run the Grinder: Once the grinder is filled with rice, turn it on and let it run for about 30 seconds to a minute. The rice will help scrub the blades and remove the coffee particles that may have built up over time.
  3. Repeat until Clean: After the initial grinding, check the blades to see if there are any visible coffee grounds or oils left. If necessary, repeat the process by adding more rice and running the grinder again. It may take a few rounds to thoroughly clean the blades, depending on the level of residue buildup.
  4. Pour Out Rice Powder: Once you are satisfied with the cleanliness of the grinder, carefully remove the hopper and pour out the powdered rice.
  5. Wipe the Grinder: Finally, use a clean cloth or paper towel to wipe down the interior and exterior of the grinder. Pay close attention to the blades, removing any remaining rice powder or residue that may have accumulated during the cleaning process.

Coffee Grinder Cleaning Tips

By following these coffee grinder cleaning tips, you can ensure that your grinder remains in optimal condition, providing you with fresh and flavorful coffee every time.

Person cleaning a coffee grinder
  • Do not use rice in burr grinders. While rice is often recommended for cleaning blade coffee grinders, it cannot be used on burr coffee grinders. The small, hard grains of rice can get stuck in the burrs or other components, leading to potential damage or clogs. Instead, opt for other cleaning methods specifically designed for burr coffee grinders.
  • Do not submerge the grinder. Coffee grinders should never be submerged in water or any other liquid. The electrical components and the motor can be damaged, rendering the grinder useless. Instead, carefully remove any removable parts and clean them separately using appropriate cleaning methods.
  • Avoid using harsh chemicals. Harsh chemicals, such as bleach or other cleaning agents, should not be used to clean coffee grinders. These chemicals can corrode your unit and leave behind residue or odors that can affect the taste of your coffee. Stick to mild, food-safe cleaning solutions or specialized coffee grinder cleaning products.
  • Do not reassemble the grinder while it's still wet. After cleaning the grinder, make sure all the parts are completely dry before reassembling it. Moisture can lead to rusting, mold, or mildew growth, affecting the grinder's performance and potentially contaminating your coffee. Allow all parts to air dry thoroughly or use a clean, dry cloth to ensure they are moisture-free.
  • Avoid using sharp objects to clean the unit. When cleaning a coffee grinder, never use sharp objects, such as knives or metal skewers, to remove coffee residue or clogs. These objects can scratch or damage the grinder's components, affecting its functionality. Instead, use soft brushes or specialized cleaning tools designed for coffee grinders to gently remove any buildup.

How Often Should You Clean a Coffee Grinder?

Cleaning your coffee grinder regularly is essential to maintaining the quality and flavor of your coffee. How often you should clean your coffee grinder depends on how frequently you use it. For commercial applications, use the following coffee grinder cleaning recommendations:

  • Every Day: Dust off excess grounds and wipe off the exterior
  • Every 1-2 Weeks: Empty and wipe off the hopper and grind chamber with the appropriate coffee equipment cleaners like hopper wipes and grinder tablets
  • Every 1-3 Months: Disassemble the unit and deep clean

If you operate a coffee shop, ensuring that your equipment is clean and functional is a key part of your business’ success. Train your staff to clean your coffee grinder regularly and thoroughly to keep serving your customers the freshest cup of coffee possible.

Posted in: Coffee & Tea|By Janine Jones
The information provided on this website does not, and is not intended to, constitute legal advice. Please refer to our Content Policy for more details.
External Link

You are about to leave the security of WebstaurantStore.com.

We are not responsible for the privacy policy or any content, links or software, or any consequences from your access to or use of the technologies, websites, information and programs made available on this new site.

Do you want to proceed?

Webstaurant TVProduct demonstrations, how-to's, & descriptions ArticlesIn-depth information and tips for running a successful restaurant Buying GuidesTools to help you find the perfect product for your business