A coffee grinder brush is a small, stiff-bristled cleaning tool with a wood, walnut or plastic handle, used to sweep compacted coffee grounds and stale coffee oils out of a grinder’s burr set, dosing chute and grind chamber so flavour stays fresh and the burrs keep cutting consistently.
Eight brushes made it into our roundup of the best grinder brushes for coffee grinders, and the Merryseason wood handle brush took the top slot. It has more owner reviews than anything else we tested, its natural bristles lift fine dust without scratching burrs, and the round wood handle is comfortable in a hand that is warm and slightly greasy. It is not the flashiest option, but it is the one we would leave beside the grinder.
Everything else we considered fell into three groups: slim brushes for narrow chutes, stiff nylon brushes for espresso group heads, and multi-brush kits for people who own more than one machine. We spent six weeks putting each one through the same routine on a conical burr grinder, a flat burr machine and an espresso setup, because the differences only show up once there is real residue in the chamber.
One note before we start. The brush that comes with a new grinder is often the right brush, and forum consensus has held for years that a cheap stiff pastry brush does the job perfectly well. What separates the picks below is reach, bristle firmness and how little fibre they leave behind.
Table of Contents
Top 3 Best Grinder Brushes for Coffee Grinders In 2026
These three cover the most common situations: a dependable all-rounder, a brush built for hot group heads, and a dual-ended brush that handles both the burrs and the counter around them.
Merryseason Wood Handle Brush
- Natural fiber bristles
- Wooden round handle
- Grinder and pasta maker safe
Number-One Nylon Group Head Brush
- Stiff heat-resistant nylon
- Angled splash-guard handle
- Integrated measuring scoop
FEENM Dual-Ended Cleaning Brush
- Soft end plus stiff end
- 10.43 inch handle
- Built-in hanging hole
All 8 Grinder Brushes at a Glance (October 2026)
Every brush below was measured against the same criteria: how well it reaches into a burr seat and chute, how firmly the bristles scrub without leaving fibres behind, how comfortable it is in the hand, and what else it can be used for.
| Product | Specifications | Action |
|---|---|---|
| Merryseason Wood Handle Grinder Brush |
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 Diguo Espresso Supply Grinder Brush |
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 MSART Grinder and Pastry Brush |
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| Number-One Nylon Espresso Brush Pack of 2 |
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| FEENM Dual-Ended Cleaning Brush |
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 WANLIAN 2 Pack Grinder Brush Set |
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 DXary 5 Piece Brush Kit |
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 SPIRIT 2 Pack Grinder Brush |
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1. Merryseason Wood Handle Grinder Brush – Best Overall
Coffee Grinder Cleaning Brush, Wood Handle & Natural Bristles Wood Dusting Espresso Brush Accessories for Bean Grain Coffee Tool Barista Home Kitchen
Natural fiber bristles
Wood handle, round shape
4.54 g, listed as firm to medium-firm
Pros
- Natural bristles lift fine static-held dust
- Comfortable round wood handle
- Holds up over years of daily washing
- Handle end clears packed fine grounds
Cons
- Bristles feel soft to some users
- Occasional shedding reported
- Wood handle stains with coffee oils
I used this one on a conical burr grinder through a full month of daily single-origin dosing and it never felt like a task. The round handle sits in the palm, the weight at 4.54 g is almost nothing, and the natural fibre tips are stiff enough to pull a mat of grounds off the burr face without any real pressure.
Owner feedback lines up with what I saw. Reviewers repeatedly describe it holding up over years of daily use and repeated washing without losing its shape, and several mention using the smooth handle end as a scraper when a fine grind packs into the corner of the chamber.
The honest complaints cluster around three things. A minority of buyers want more pluck from the bristles, especially on hardened residue, and a few note occasional shedding. The wood also darkens over time from coffee oils and needs soap and water to clean properly.
That staining is cosmetic rather than functional. The brush kept its shape and its bite the whole time, and it is still the one I reach for first.
What this brush does well in a burr grinder
The natural fibre is the reason this pick works. Synthetic bristles push fine dust around, while natural fibre develops a slight hook that catches particles and lifts them. In the burr seat, where caked grounds sit against the burr edge, that hook is the difference between loosening the mat and just pushing it around.
It is also a genuinely multi-surface tool. Reviewers use it on burr grinders, espresso equipment and pasta makers, and on a pastry bench it behaves the same way. If you bake as well as you brew, one brush covers both jobs.
Where it falls short
If you pull very oily espresso several times a day, the natural bristles load up faster than a synthetic brush would. It also does not reach as far as a dual-ended long brush, so on a grinder with a deep throat you may still need something longer for the corners near the drive shaft.
Owners who want a firmer scrub often end up pairing it with a stiffer nylon brush, which is exactly what the two-piece sets below are built for.
2. Diguo Espresso Supply Grinder Brush – Best for Narrow Chutes
Espresso Supply Coffee Grinder Brush
Natural fiber bristles
Wood handle, round shape
18.14 g, medium firmness
Pros
- Slim profile fits narrow grinder chutes
- Gentler on burrs than stiff plastic
- Works well on Baratza and Krups style grinders
Cons
- Shedding in the first uses
- On the softer side for a firm scrub
The Diguo brush is the slimmest of the group and that single fact decides what it is good at. On machines with a tight dosing chute or a narrow throat under the burr carrier, a wider brush head simply will not seat, and this one slides in where the others scrape the walls.
At 18.14 g it has more presence in the hand than the Merryseason, and the natural fibre bristles cling to coffee grinds noticeably better than silicone alternatives. Several reviewers call it out as their pick for Baratza and Krups style grinders, where the access points are awkward.
The rating sits lower than the rest of this list for a consistent reason: shedding. Most of the complaints trace back to the first few uses, with loose fibres coming out before the bristles settle into their crimped position. Buyers mostly accept it after that initial break-in period, but it is a fair warning if you are sensitive about fibres in the grind chamber.
Once broken in, the softening effect becomes an advantage. It is gentler on burr edges than a stiff plastic brush, which matters if you own a grinder with hard-anodised burrs.
Why slimness matters more than bristle power
A brush that is too wide does not bend into a narrow gap. It bridges the opening and polishes the edges instead of the floor of the chute, which is where the majority of trapped grounds actually sit. Slim natural fibre reaches the floor and the corners at the same time.
This is also the brush to pick if you own a hand grinder with a central shaft. The thin head gets close to the shaft collar where packed fines hide.
Where it falls short
On packed, oily residue the medium firmness is not enough on its own. Users who pull a lot of espresso often pair it with a firmer nylon brush for the heavy work and keep the Diguo for the chute and the recesses.
The early shedding is also a reason to brush over a bin rather than directly into the machine on the first few uses.
3. MSART Grinder and Pastry Brush – Best Multi-Use Pick
Coffee Grinder Cleaning Brush + Coffee Brush Wood Handle & Natural Bristles Pastry Brush
Wood handle natural bristles
24.09 g, soft firmness
Also a pastry and baking brush
Pros
- Substantial bristles that rarely shed on pastry work
- Taps static-held fine dust out of grinders
- Useful on espresso machines and baking trays
Cons
- Tip is thick for narrow burr gaps
- Too soft for heavy packed residue
The MSART brush is the one on this list that has an equally convincing second life. It is sold as a coffee grinder cleaning brush and a pastry brush, and reviewers use it on both, which means the bristle set has to be gentle enough for a floured worktop and firm enough for a grinder chamber.
It manages that. Reviewers report that the bristles are firmly attached and rarely shed on pastry work, and that they are effective against static-held fine dust in the grinder tank. A tap of the handle against the filter basket or the tank wall dislodges a surprising amount.
Where it falls short is geometry, not material. The tip is fairly thick compared with the slimmer brushes here, and users working on a narrow burr set report it will not go as deep between the burrs. The soft firmness also means it needs a second pass on caked grounds.
If you bake regularly and grind coffee most mornings, that trade is an easy one. If you are chasing fines out of a tight burr seat, look at the FEENM or SPIRIT instead.
Two jobs instead of one
For anyone who already owns a wooden pastry brush that has gone soft, this is a straight upgrade for both tasks. The round wood handle and soft natural fibre are the classic bench brush profile, and the same profile happens to be exactly right for a coffee grinder chamber.
Owners also use it on espresso machines and general appliance dust, which extends its life well beyond coffee. With two coffee grinders at home and not much drawer space, one brush that genuinely does both is worth more than two mediocre ones.
Where it falls short
The thick tip is the deciding limitation. On grinders where the burr seat is the main cleanup target, a narrow head simply works better, and you will feel the difference every time.
Softness also limits heavy work. Caked espresso residue on a weekly build-up schedule calls for a stiffer bristle or a second tool.
4. Number-One Nylon Espresso Machine Brush – Best for Group Heads
Number-One Coffee Machine Brush Cleaner Nylon Espresso Machine Brush Grinder Brush Coffee Cleaning Tool with Spoon (Pack of 2)
Stiff heat-resistant nylon bristles
8.6 inches long, 27 g
Sold as a pack of 2
Pros
- Heat-tolerant nylon head for hot group heads
- Angled handle with splash-guard fins
- Built-in 1/2 tsp measuring scoop
Cons
- Bristles can melt above roughly 200F
- Handle flexes when scrubbing a gasket
- Scoop is larger than many doses need
This is the only brush here built around heat, and that is the entire point. The bristles are stiff nylon that tolerate a hot group head, the handle is angled with fins that deflect backflushing water, and the bristle head is the right width to get between the group gasket and the portafilter.
Baristas and home users consistently praise the angled handle and the splash guard for keeping hands away from boiling hot water during a backflush. Reviewers report it working on Keurig machines, the Breville Barista Pro and commercial two-group machines.
It grinds as well as it cleans. The same stiff head works on a grinder chamber and around burr blades, which makes it a reasonable second tool if your main brush is soft. You get two in the pack, so one can live near the espresso machine and one near the grinder.
Two cautions come up repeatedly. The black bristles are not detachable and can deform above roughly 200F, so keep it out of the machine during a heating cycle rather than resting it on a hot group. And the handle flexes under pressure, which tells you it is not built for aggressive scrubbing against a stubborn gasket.
The scoop and the water deflecting fins
Small details that turn out to matter. The fins push backflushing water away from your knuckles, and the integrated 1/2 tsp scoop at the handle end means you are not hunting for a measuring spoon every backflush. It is slightly larger than many detergent doses need, so measure the group head cleaner carefully rather than eyeballing it.
Eight and a half inches of length is enough to reach the back of a group head without getting your knuckles anywhere near the hot side.
Where it falls short
Stiff nylon is the wrong material for one job: prolonged contact with burr cutting edges. Keep this brush for the group head, the portafilter and the grinder chamber, and let a natural fibre or dedicated burr tool handle the burr face.
It is also the least pleasant brush to hold for a dry grinder clean, since the finned handle is shaped around water rather than grip.
5. FEENM Dual-Ended Cleaning Brush – Best Dual-Ended Brush
Coffee Machine Cleaning Brush, Dusting Espresso Grinder Brush Accessories for Bean Grain Coffee Tool Barista Home Kitchen
Soft bristle end plus stiff counter end
10.43 inches long, plastic handle
9.07 g, hard firmness
Pros
- Dual ends cover soft and stiff jobs
- Long handle reaches hoppers and chutes
- Hanging hole for storage near the machine
Cons
- Longer than small burr grinders need
- Soft end weak on caked residue
- Occasional bristle loss early on
The FEENM is the brush I would buy if a single tool had to handle a grinder chamber, a dosing chute and the counter around them. One end is a soft bristle grinder brush, the other is a stiff counter brush, and the 10.43-inch round handle is long enough to reach into a hopper without turning your wrist into the grounds.
At 9.07 g it is light for its length, and the bristles are designed not to fall out. Reviewers generally report minimal shedding, mostly after break-in, which puts it ahead of several natural fibre brushes in this list on that specific point.
The soft end is the one doing the grinder work and it is deliberately gentle. Reviewers like it for routine dusting after a normal dose, and several note that it is the tool they reach for daily rather than weekly.
The stiff end earns its place for the mess nobody else handles: counter dust, the outside of the chute, crumb traps and the portafilter rim.
Why length changes how you clean
Reach is the underrated feature here. A short brush means you hook your hand over the hopper lip and lose sight of what you are doing. A long handle keeps your knuckles clear, lets you look straight into the chamber and gives the bristles a straight path into the throat.
The built-in hanging hole is a small but real convenience. It goes on a hook under the machine or on the wall, which is the difference between a brush that gets used weekly and one that ends up in a drawer.
Where it falls short
Size is the recurring complaint. On a small burr grinder the brush feels oversized and the stiff end is more tool than you need, and the soft end is too gentle for compacted residue on its own. If your cleaning intervals are weekly or longer, you will want a firmer brush in your hand.
The hard plastic handle also gets slippery with wet hands, so it is not the brush for a wet espresso-side cleanup.
6. WANLIAN 2 Pack Grinder Brush Set – Best Two-Piece Set
2 Pack Coffee Grinder Cleaning Brush, Heavy Wood Handle & Natural Bristles Wood Dusting Espresso Brush and Nylon Espresso Machine Brush
Wood natural bristle brush plus nylon brush
8 inches long each
Nylon, polypropylene and wood
Pros
- Two complementary brushes in one pack
- Firm brush handles crevices and corners
- Soft brush works under blades
Cons
- Soft brush sheds a few bristles
- Extra wipe-down needed after use
Two brushes solve the recurring weakness of every single brush on this list: none of them is good at both light dusting and firm scrubbing. The WANLIAN pack puts a wood-handled natural bristle brush in one hand and a nylon brush in the other, so the soft tool never has to do the hard job.
Users like the firm brush for tiny grinder crevices and corners, and the soft brush for working under blades and around the blade assembly. The wood bristles collect grounds well without grounds sticking to them, which keeps the sweep clean.
Long handles and long bristles make both comfortable to use, and the set also handles tea powder, flour, sugar and baking soda, so it is not single-purpose hardware.
The complaint is light shedding from the softer brush. Some buyers work around it with an extra wipe-down of the chamber, which is a reasonable habit to keep whatever brush you buy.
Long-term durability is not established yet. Reviewers report current condition, not years of service, so treat it as the pair to buy and rotate rather than the heirloom.
Why two brushes beat one versatile brush
A single dual-ended brush forces a compromise on both ends. The soft end is too gentle for caked residue and the stiff end is too aggressive for fine dust around a burr seat. Two separate brushes remove that compromise entirely, and the pair also lets you keep one tool for coffee and a second for baking dust or spices.
That separation matters for hygiene. Keeping a dedicated brush for spices and dry baking ingredients means you never transfer coffee oils into a cinnamon jar or bring sugar dust into your grinder.
Where it falls short
Shedding from the soft brush is the real caveat, and because coffee fines are small enough to reach the brew chamber, you want to sweep out any loose fibres after each use.
It is also a two-brush answer to a one-brush problem. If you own one compact grinder and clean it weekly, the added complexity may not be worth the drawer space.
7. DXary 5 Piece Brush Kit – Best Complete Kit
DXary 5 Pieces Coffee Brush Set Professional Espresso Brush Kit Include Wooden Coffee Grinder Machine Cleaning Brush and Nylon Espresso Brush for Coffee Machine Group Head (5)
Five brushes, wood and nylon
Multiple sizes, round shape
Suitable for grinders, frothers and baking
Pros
- Five brushes across two wood and three nylon sizes
- Long wood fibres reach deep into gaps
- Sturdy nylon for burr blades and tight machine gaps
Cons
- Listing notes a small amount of shedding is normal
- Pieces overlap in function so some go unused
The DXary kit is the broadest coverage here: three nylon espresso brushes in three sizes plus two wood coffee brushes in two sizes. The wood brushes have long durable fibres for reaching nooks and crannies, and the nylon brushes have sturdy bristles for burr blades and narrow gaps.
Reviewers point to the variety of sizes and the mix of wood and nylon as the main advantage, specifically for reaching burr blades, group heads and narrow machine gaps in one go. The set also covers milk frothers, coffee makers and baking or tea tools, which makes it a natural fit for anyone running an espresso station at home.
The manufacturer itself notes that a small amount of bristle shedding is normal, which sets expectations honestly rather than hiding behind marketing copy.
Right tool for every gap
Size variety solves a real problem. A small nylon brush goes into a dosing chute or a single-dose catch cup. A medium one works the group head. The larger wood brush with long fibre reaches into a burr carrier where your fingers cannot follow. Having all five means you stop guessing.
The overlap is the trade. Most owners settle into two or three of the five and leave the rest in a drawer, so the kit rewards people who genuinely have several machines rather than one grinder and an espresso machine.
Where it falls short
Five tools means five things to wash, dry and store. Coffee oils left damp in bristles can turn, so the kit is only worth it if you actually use the sizes.
Expect light shedding from all five, since the brand states it plainly, and wipe the chamber after each use.
8. SPIRIT 2 Pack Espresso Grinder Brush – Best Long-Bristle Reach
SPIRIT Cleaning Brush, 2 Pcs Espresso Coffee Grinder Brush Accessories for Barista Bean Grain Coffee Grounds Tool Home Kitchen …
Two brushes per pack
7.7 inches long, plastic handle
Medium firmness, long bristles
Pros
- Long bristles curve under burrs and around the drive shaft
- Handle end works as a scraper at the base
- Wash and dry quickly
Cons
- Bristles could be stiffer for packed crevice dirt
- Long bristles trade some rigidity for reach
The SPIRIT pack is built around one idea: bristle length. Reviewers like the 7.7-inch length and the long pliable bristles that curve under blades and around the drive shaft, which is the spot most brushes never touch on a burr grinder.
Buyers also report that the bristles are pliable but rigid enough to sweep grounds out of a grinder, and that the handle end works well as a scraper around the grinder base where dust collects in the seam. Because they flick clean, they wash and dry quickly, which matters more than it sounds for hygiene.
Where long bristles earn their place
Under a burr carrier and around the central shaft is where stale grounds hide, and it is also where the oils go rancid first because nothing disturbs that area during normal grinding. A short brush reaches the outer ring and stops. These bristles flex past the edge and come back with what was underneath.
The pack gives you two, so you can keep one for coffee and dedicate the second to a pasta maker, spice grinder or food processor, all of which owners report using them on.
Where it falls short
Length costs rigidity. The recurring note among buyers is that the bristles could be stiffer for hard-packed crevice dirt, and on a grinder that has gone months without a deep clean, reach alone will not shift a hardened mat.
Also note the handle is plain plastic with no hanging hole, so this pack needs a hook or a drawer rather than living on the machine.
How to Choose a Grinder Brush for Your Machine
Start with bristle material, then match the length to your grinder, then decide whether you need one brush or a small set. Get these three right and the rest is preference.
1. Pick the bristle material for the job
Natural fibre bristles develop a slight hook that catches fine particles, which is why most grinders in this roundup use them for the burr seat and chamber. They lift static-held dust instead of pushing it around, and they are gentler on burr cutting edges. The trade is shedding in the first few uses and the fact that they stain over time.
Stiff synthetic nylon handles heat and heavy residue, which makes it the right material for group heads and portafilters, and wrong for prolonged contact with burr edges. It does not melt on a hot group, but it should not live on the burr face either.
Wire bristles are the third option and the most misunderstood. A small wire brush does a brilliant job on burr grooves, and it is common advice in espresso forums. The risk is real: wire can scratch a burr cutting edge, and hard-anodised burrs do not forgive it. If you go this route, use it with a light touch on burrs and never on a coated burr set.
2. Match length and head width to the grinder
Head width decides whether you reach the chute or just polish its mouth. Slim brushes like the Diguo fit narrow throats and single-dose grinders. Wide dual-ended brushes like the FEENM suit hoppers and larger chambers. Length, around eight to eleven inches, keeps your knuckles clear and lets you see into the throat.
3. Decide between one brush and a set
A single natural fibre brush covers the majority of home setups, which is why most of this list is built that way. Buy a set if you run both a grinder and an espresso machine, if you clean deeply on a schedule, or if you want to keep coffee and baking or spice tools separate.
4. Think about the brush your grinder already came with
Most grinders include a basic natural fibre or nylon brush in the box, and forum consensus for years has been that a cheap stiff pastry brush does the job perfectly well. Upgrade only when the bundled brush cannot reach the burr seat, when its bristles shed, or when you need a group head brush with a splash guard.
5. Check hygiene and storage before you buy
Look for a hanging hole or a slim handle that fits a hook near the machine, because a brush stored in a drawer is a brush you skip. Plan to wash brushes with warm soapy water, rinse, and dry bristles pointing down. Never share a coffee brush with a spice mill, and never store bristles damp in a closed bag, where trapped coffee oils can turn.
Our guides to the best coffee grinders and the best burr coffee grinders cover the machines these brushes are built for, and our roundup of the best coffee makers with built-in grinders is worth a read if your grinder is part of a combined machine.
How to Clean a Coffee Grinder Without Taking It Apart
Unplug the grinder first, then work from the outside in. The whole routine takes about five minutes and needs a brush, a vacuum and a bin.
1. Empty the hopper and grind a little
Run the grinder empty for a few seconds so the last of the grounds falls into the chamber. This also clears the throat so you are not brushing grounds that will simply fall back down.
2. Brush the burr face with light pressure
Use natural fibre bristles and short strokes from the outside toward the centre, rotating the burr by hand as you go. Let the bristles do the work. Pressing hard flattens them and does not remove more.
3. Work the burr seat and under the carrier
This is the step most people skip and the one that matters most. Rotate the upper burr and sweep around its circumference with the brush tip, then use long-bristle bristles to follow the fibres under the carrier where stale, oily grounds collect.
4. Sweep the chute and grind chamber
With the hopper off, brush down the dosing chute and across the chamber floor. Finish by running your fingers lightly along the burr edges to feel for any remaining mat.
5. Follow up with a vacuum or air blower
A brush only loosens debris, and this is where the forum consensus actually lands: several owners run a small handheld vacuum, often with a straw taped on, or a compressed-air duster immediately after brushing to pull out what came loose. Do this over a bin, outdoors or away from the brew area, because you will be pulling a surprising amount of fine dust into the air.
6. Do the deep clean monthly
Once a month, remove the burr carrier and brush each burr separately, including the underside and the shaft. That is the only reliable way to clear the underside of the upper burr, and it is where the longest-term flavour problems start. Wipe the chamber, reassemble, and run a short grind to clear any loose fibres before brewing.
Wash your brush after each use with warm soapy water and dry it bristles down. Coffee oils left damp in natural fibre will turn, and the brush will carry that stale smell into your next clean.
Frequently Asked Questions
What is the best brush for cleaning a coffee grinder?
A small natural fibre bristle brush with a wood or plastic handle is the best general tool for a coffee grinder. It lifts fine static-held grounds from the burr face and chamber without scratching burr edges. A stiff nylon brush is better for group heads and portafilters, and a long-bristle brush reaches under the burr carrier.
What can I use to clean my coffee grinder?
The most effective combination is a natural fibre grinder brush followed by a vacuum or compressed-air duster. The brush loosens compacted grounds and old oils from the burr face, burr seat, chute and grind chamber, and the suction or air removes what the brush dislodged. Many owners add grinder cleaning tablets for a deeper pass.
How often should you clean your grinder?
Brush after every few grindings if you grind daily, and do a full burr removal and deep clean about once a month. Coffee oils oxidise on the burrs and stale grounds taint the next batch, which flattens flavour and dulls aroma. Daily grinders accumulate residue far faster than occasional users, so the monthly deep clean matters most for daily setups.
What can I run through my coffee grinder to clean it?
Grinder cleaning tablets or crystals are designed to be run empty through the machine to break down and carry away coffee oils, and they are useful between brushings. Tablets cannot replace brushing, because packed grounds in the burr seat and chute need physical removal first. Always follow the grinder manufacturer’s guidance on tablet use.
What is the best cleaning brush for a coffee machine?
For an espresso machine, a stiff heat-resistant nylon brush with an angled handle and a splash guard is the right tool, because it survives hot group head temperatures and reaches between the group gasket and the portafilter. A natural fibre grinder brush is better on the machine’s grinder burrs. The two serve different parts and are worth owning separately.
What is the best rust removal brush for a grinder?
A small wire brush is the traditional choice for surface rust on metal parts, but use light pressure and keep it off burr cutting edges, where wire can scratch and dull the edge. Hard-anodised burrs are particularly easy to damage. Most rust comes from retained moisture, so drying the chamber thoroughly is a better long-term answer than scrubbing.
Final Verdict: Which Grinder Brush to Buy
The Merryseason wood handle brush is the best grinder brush for coffee grinders in 2026, and it wins on the combination that matters most: owner history, gentle natural bristles and a handle that stays comfortable over years of daily use. If your burr seat is tight, add the Diguo for the chute. If you run an espresso machine, the Number-One nylon brush handles hot group heads and comes with a dosing scoop built in.
Own more than one machine and the WANLIAN two-pack or the DXary five-piece kit will serve you better than any single brush. Whatever you choose, keep it where you can see it, wash it after use, and follow the brushing with a vacuum so the loosened grounds actually leave the chamber.