DeLonghi Grinder Cleaning & Maintenance Guide

What De'Longhi Actually Asks You to Clean

Most De'Longhi grinder care comes down to four jobs: use beans the grinder can handle, turn the grind dial only while it's grinding, keep the funnel under the grinder clear with the supplied brush, and empty the hopper before you change coffee. Only the La Specialista Prestigio and Maestro manuals let you lift out the upper burr to clean it. Worn burrs are a service-center job on every model.

That's less than most grinder-cleaning advice online, and it's deliberate. The Magnifica, Dinamica and La Specialista Arte books have no burr-removal steps at all. The bean container and coffee mill aren't even on the "clean regularly" lists in the Magnifica S and Dinamica books. What is on those lists is the pre-ground coffee funnel. That funnel explains a lot of "grinder" problems, because a clogged one triggers the same warning as an empty bean container.

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Which De'Longhi Machines Have a Grinder

The Magnifica Evo's book wasn't among the manuals checked for this guide. Its lights differ from the Magnifica S, so follow its own instructions where they disagree with the steps below.

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Step 1: Use Beans the Grinder Can Handle

Every De'Longhi bean-to-cup manual carries the same warning. Green, caramelized or candied coffee beans can stick to the coffee mill, and the Dinamica and Magnifica Start books say that can make it unusable. This is the one grinder failure the manuals tell you how to prevent, and it's entirely down to what goes in the hopper.

1. Check the bag before you fill the hopper. Skip anything described as candied, sugar-coated or caramelized.
2. Never pour beans into the pre-ground coffee funnel. It's for ground coffee only, and at most one level measure at a time.
3. On a La Specialista Arte, load only the beans you plan to use soon. De'Longhi's troubleshooting table suggests this so you don't waste coffee when you switch beans.

Time: 1 minute
Cost: Free
Difficulty: Easy

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Step 2: Turn the Grind Dial Only While It's Grinding

The grind dial is the one grinder part owners adjust, and doing it with the mill stopped is the mistake the manuals warn about. The Magnifica S, Magnifica Start and Dinamica books all say to turn it only while the coffee mill is running. The La Specialista Arte's instructions say the same.

1. Start a coffee so the grinder is running.
2. Turn the dial one click while it grinds. More than one click at a time can leave coffee coming out a drop at a time.
3. Coffee too slow or dripping: one click clockwise, toward 7. Weak and not creamy: one click anticlockwise, toward 1.
4. Judge the result after at least two more coffees. The change doesn't show before that.

On the La Specialista Arte the selector runs from fine to coarse. The factory setting is 5, and De'Longhi recommends 3 to 6 for most coffees.

Time: 5 minutes, across a few coffees
Cost: Free
Difficulty: Easy

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Step 3: Clear the Pre-Ground Coffee Funnel Monthly (Magnifica, Dinamica)

On the bean-to-cup machines, this is the closest thing to "cleaning the grinder" that De'Longhi documents. The Magnifica S and Dinamica books both say to check about once a month that the pre-ground funnel isn't blocked and to remove coffee deposits. The Dinamica specifies the brush supplied with the machine.

Why it matters: on the Magnifica S, Dinamica and Dinamica Plus, a clogged funnel sets off the same warning as an empty bean container. On the Magnifica Start, the troubleshooting table lists a clogged funnel as the cause of watery coffee. A full hopper with a "no beans" light is usually this.

1. Open the cover of the pre-ground coffee funnel.
2. Look down the funnel. Coffee packed at the bottom or stuck to the walls means it's blocked.
3. Work the deposits loose with the supplied brush and clear them out.
4. Close the lid and make a coffee to check the warning has cleared.

If the beans warning stays on with a full hopper and a clear funnel, see De'Longhi beans empty with a full hopper for each model's exact light pattern.

Time: 5 minutes
Cost: Free
Difficulty: Easy

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Step 4: Brush the Grinder Outlet and Funnel (La Specialista Arte)

The La Specialista Arte grinds straight into the portafilter, so its grinder has an outlet you can reach. Its manual gives a two-line grinder cleaning routine, and this is it.

⚠️ Safety: switch off at the main switch and unplug before a brush goes near the grinder outlet.

1. Switch off and unplug.
2. Use the supplied cleaning brush on the attachment area where the portafilter pushes in to start grinding.
3. Brush out the coffee funnel above it.
4. Plug in and grind a dose to check coffee falls freely into the basket.

Time: 5 minutes
Cost: Free
Difficulty: Easy

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Step 5: Empty the Hopper Before You Change Coffee (La Specialista Arte)

Beans left in the grinder mix with the new coffee for the next few doses. The La Specialista Arte's manual gives two ways to clear it: vacuum the hopper empty, or grind until nothing is left.

1. Stop adding beans a few doses before you switch.
2. Vacuum out what's left, or keep grinding into the portafilter until the hopper and grinder run empty. De'Longhi's service data sheet describes pushing the portafilter in repeatedly without beans until the filter stays empty.
3. Pour in the new coffee.
4. If the grinder now delivers too little to reach the basket's "perfect dose" mark, set it up again as you did on first use.

Time: 10 minutes
Cost: Free
Difficulty: Easy

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Step 6: Clean the Parts Around the Grinder

The bean container needs less than you'd expect. On the La Specialista Arte, De'Longhi's cleaning chart allows a cloth only: no dishwasher, no running water and no washing-up liquid. The Magnifica S book says none of its components go in a dishwasher. On the Dinamica, only the drip tray grille and milk container can.

1. Wipe the bean container with a dry or damp cloth when it's empty. Let it dry fully before refilling.
2. On the Magnifica and Dinamica, clean the infuser regularly; the Dinamica book says at least once a month. Switch the machine off first, soak it in water for about 5 minutes and rinse it under the tap. Water only, no detergent.
3. Brush out coffee residue in the infuser housing.
4. Skip chemical cleaners. The Magnifica S and Dinamica books say De'Longhi's bean-to-cup machines don't need chemical products for cleaning. Solvents, abrasives, alcohol and metal scrapers are all ruled out.

Time: 10 minutes
Cost: Free
Difficulty: Easy

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Step 7: Clean the Upper Burr (La Specialista Prestigio and Maestro)

These two are the exception among the De'Longhi manuals checked for this guide. The Prestigio (EC935X) and Maestro (EC96XY) books say to wipe the bean container housing and upper burr with a damp cloth when you clean the container. They also show how to lift the upper burr out if foreign matter blocks it. Burr replacement is still a customer services job.

⚠️ Safety: switch the machine off and unplug it before your fingers go near the burrs.

1. Empty the bean container. Lock the portafilter onto the grinder outlet and run the grinder without beans to clear the coffee guide.
2. Switch the machine off and unplug it.
3. Remove the bean container by turning it anticlockwise, and vacuum the housing.
4. Turn the grinding selector anticlockwise as far as it goes, to REMOVE.
5. Lift the upper burr out by its handle. Clean it with a brush (not supplied) and vacuum the residue.
6. Refit the burr and turn the selector back to your grind level. Pull gently on the handle: a correctly seated burr won't move.
7. Wipe the housing with a damp cloth, dry it, and refit the bean container until the arrow lines up with the padlock symbol and it clicks.

Leave the selector within levels 1-8 afterwards. At REMOVE, the "!" light flashes and the machine won't grind.

Time: 15 minutes
Cost: Free
Difficulty: Moderate

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When the Grinder Misbehaves

For a La Specialista Arte that won't brew at all, the La Specialista Arte troubleshooting guide covers its lights and flow problems.

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What the Manuals Don't Ask You to Do

A lot of grinder advice online goes further than De'Longhi does. None of the Magnifica S, Magnifica Start, Dinamica or La Specialista Arte books mentions any of these, and the Prestigio and Maestro books stop at the upper burr:

• Taking the burrs out on a Magnifica, Dinamica or Arte. Those books have no owner burr-removal steps, no REMOVE position and no burr-cleaning mode. Only the Prestigio and Maestro have a REMOVE position, for the upper burr (Step 7).
• Grinder cleaning tablets or rice. Neither is mentioned. We'd stick to the brush-and-funnel routine above.
• Water or lubricant on the grinder. Nothing is documented, and the bean container on the Arte is cloth-only.

Anything past the funnel, outlet or Prestigio/Maestro upper burr means opening the machine. De'Longhi's La Specialista instructions say not to remove the exterior or attempt repairs, as that voids the warranty.

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When to Take It to a Service Center

• The grinder runs but can't clear, even after emptying the hopper at the coarsest setting (La Specialista Arte) or clearing the funnel (Magnifica, Dinamica).
• A grinder that won't grind at all. De'Longhi's service data sheet puts this down to foreign matter that can't be ground: vacuum out the beans and particles, and if the problem persists, it goes to a service center.
• Worn burrs. De'Longhi says burrs wear down over time and a customer services center changes them, on the Prestigio and Maestro too. The sign on La Specialista models is a basket that can't reach the perfect dose even at the top of the second grinding range.
• A burning smell or a tripped breaker. Unplug and stop using it.

Find an authorized service center through delonghi.com.

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Grinder Care Schedule

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FAQ

Can I remove the burrs on my De'Longhi to clean them?

Only on the La Specialista Prestigio and Maestro. Their manuals show the upper burr lifting out by its handle once the selector is turned to REMOVE, with the machine off (Step 7). The Magnifica S, Magnifica Start, Dinamica and La Specialista Arte manuals have no owner burr-removal steps. On every model, worn burrs are replaced by a customer services center.

Should I run grinder cleaning tablets through a Magnifica?

The manuals don't call for them. De'Longhi's routine for bean-to-cup machines is the pre-ground funnel check, the infuser rinse and the right beans, and its books say no chemical products are needed to clean these machines.

Why does my Magnifica say it's out of beans when the hopper is full?

Usually because the pre-ground coffee funnel is clogged. On the Magnifica S, Dinamica and Dinamica Plus, the "no beans" warning and the clogged-funnel warning are the same light pattern. Clear the funnel with the brush (Step 3).

Does a De'Longhi Dedica have a grinder to clean?

No. The Dedica is a manual portafilter espresso machine that uses pre-ground coffee, so there's no built-in grinder. Clean its filters and portafilter instead.

How often should I clean a De'Longhi grinder?

The manuals give a monthly check for the pre-ground coffee funnel and at least monthly for the infuser. There's no separate interval for the grinder itself. The Prestigio and Maestro books tie the upper-burr wipe to cleaning the bean container.

Why is my coffee weak even though the grinder sounds fine?

The grind is probably too coarse, or the beans don't suit an espresso machine. Turn the dial one click toward 1 while it grinds and wait two coffees. On a Magnifica Start, watery coffee can also mean a clogged pre-ground funnel.

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Related De'Longhi Guides

• De'Longhi beans empty with a full hopper: the light pattern on each model
• La Specialista Arte not working
• La Specialista Smart Tamping not working: the Prestigio's tamping station and burr steps
• De'Longhi won't brew coffee: grind, infuser and flow fixes
• De'Longhi cleaning guide
• Magnifica S not working

Sources: De'Longhi Instructions for Use for the Magnifica S (ECAM20.11X-22.11X), Magnifica Start (ECAM22X.2Y-22X.3Y), Dinamica (ECAM35X.50) and Dinamica Plus (ECAM37X.95); De'Longhi EC915X (La Specialista Arte), EC935X (La Specialista Prestigio) and EC96XY (La Specialista Maestro) Instructions for use; De'Longhi Data Sheet and Service Manual, EC9155 La Specialista Arte (DSDL_21010_A).