How to Clean a Coffee Maker with Built-in Grinder? | Keep It Brewing Clean

For the full breakdown, see our best Coffee Maker With Built-In Grinder guide.

The coffee maker with a built-in grinder delivers fresh-ground flavor, but only if you keep the oils and grounds from going rancid inside the machine. A dirty grinder leaves bitter notes in your cup and can clog the brew path over time.

Why The Grinder Needs Its Own Cleaning Routine

Your drip coffee maker’s grinder accumulates coffee oils that turn sticky and rancid. Those oils coat the burrs and chute, and every fresh batch of beans picks up that stale flavor. Grinder maintenance is separate from descaling because it removes different buildup — oils and grounds versus mineral scale.

Most manufacturers recommend brushing the grinder chamber every few weeks with regular use. The brew basket and carafe need washing after every use. The descaling cycle handles the internal water lines and heating element, and it runs less often — typically every one to three months depending on your water hardness.

Step-By-Step: Cleaning A Grind-And-Brew Machine

Begin with a cold, unplugged machine. Empty the bean hopper completely — you cannot clean the grinder safely with beans still in it. Remove the water reservoir, brew basket, and carafe, and wash them in warm soapy water. Rinse thoroughly and let them air dry.

Next, address the grinder itself. Use the brush that came with your machine, or a dry pastry brush, to sweep grounds out of the chute and burr chamber. Do not wash steel burrs with water — Moccamaster’s support documentation warns that moisture causes rust and pitting on steel burrs. A dry brush is the correct tool.

Many grind-and-brew models have a removable burr for deeper access. On the GE Profile Grind & Brew, for example, you press and hold Grind Off to start the cleaning process, open the brew basket, and place a towel over the carafe area. Brush the built-up grounds from the chute, remove the burr, brush it clean, then reinstall it by rotating clockwise until the arrow points to the lock icon.

Never immerse the main unit, cord, or plug in water. Wipe the exterior with a damp cloth, and skip abrasive cleaners or scouring pads that scratch the finish.

Descaling And The Cleaning Cycle

Descaling removes calcium and mineral deposits from the internal water lines — the grinder brush cannot reach them. Check your manual for the recommended interval and the correct descaling solution. Many manufacturers sell their own, though a generic citric acid solution works for most machines when the manual allows it.

Run the descaling cycle exactly as your model’s instructions specify. The process generally involves filling the reservoir with the descaling solution, starting a brew cycle, letting it run partway, pausing, and then completing the cycle. Afterward, run two or three cycles with plain water to flush all traces of the solution from the lines. Some models have a dedicated cleaning cycle button; others use the regular brew function.

A few rules apply across all machines. Never clean the grinder by running rice through it — GE’s support documentation explicitly advises against this, as the rice is harder than coffee beans and can damage the burrs. Skip any homemade “cleaning” tricks that send foreign objects through the grinder.

Some removable hopper or grind-chamber parts are dishwasher-safe on certain models, but this varies. When in doubt, hand-wash. The manual for your specific appliance is the final authority on what is safe to run through the dishwasher.

How Often Should You Clean Each Part?

One final tip: always brush the grinder chamber before you descale, not after. Loose grounds can wash into the brew path during the descaling cycle and clog the system. A dry brush first, then the liquid cleaning cycle, keeps each stage working on its own target.