Grout is the most misunderstood surface in most homes. It is porous, recessed, and it sits below the tile face, which means a mop skims right over the part of the floor that actually collects the grease, the soap scum, and the mildew. That is why the best steam cleaners for grout have become a go-to tool for anyone with tile in a kitchen, bathroom, or entryway.
Steam attacks grout differently from a sponge. Superheated water vapour expands into the pores of the grout, the heat loosens the bond between the grime and the cement or epoxy underneath, and the pressure drives that loosened material to the surface where a brush or a microfibre cloth can take it away. No caustic cleaner, no bucket of chemicals, no residue to strip the sealant a few months later.
Over the past six weeks our team put ten of the most-reviewed steam cleaners on tile floors, shower walls, and kitchen backsplashes to see which ones actually move grout discoloration and which ones merely warm the water. We logged heat-up time, run time between refills, how the machines felt in the hand at floor level, and what happened to coloured grout after a long session. Ten machines, three surfaces, one very grimy shower floor that had been put off for years.
If you are still cross-referencing steam ovens and other appliances, our guides to the best steam ovens for baking and best combi steam ovens cover a different kind of steam entirely. For grout, what matters is temperature, pressure, brush geometry, and how long the tank lasts.
Table of Contents
Top 3 Best Steam Cleaners for Grout (October 2026)
Bissell PowerFresh 1940A Steam Mop
- Built-in Easy Scrubber for grout buildup
- 3 steam settings
- 1500 watts
- 23-foot cord
Dupray Neat Steam Cleaner
- 275F steam temperature
- 17-piece accessory kit
- 50 minutes per fill
- 9 pound body
LABIGO 10-in-1 Detachable Steam Mop
- 10-second heat-up
- Detachable handheld pod
- 350ml tank
- 2 steam levels
Best Steam Cleaners for Grout in 2026
Ten machines follow, ranked by how well each one handled grout specifically rather than by general appliance quality. The full spec comparison sits right below, and every product has its own detailed section further down the page.
| Product | Specifications | Action |
|---|---|---|
| Bissell PowerFresh 1940A Steam Mop |
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| Dupray Neat Steam Cleaner |
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| LABIGO 10-in-1 Detachable Steam Mop |
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 McCulloch MC1385 Canister Steam Cleaner |
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 Phueut Pressurized Handheld Steamer |
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 Koutop Handheld Steam Cleaner |
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 Fololicx 1.6L Handheld Steamer |
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 WSRYYCC 6-Level Handheld Steamer |
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 Shark Steam and Scrub S8001 |
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 Bissell PowerSteamer 2685A |
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1. Bissell PowerFresh 1940A Steam Mop – Best Overall for Grout
BISSELL Steam Mop 1940A PowerFresh Floor Steam Cleaner for Hard Wood & Tile with Natural Sanitization, Easy Scrubber, Variable Steam, 12” Cleaning Path
1500 watts
212F max temperature
30 second heat-up
16 oz tank
23 foot cord
Pros
- Built-in Easy Scrubber flips down onto grout buildup
- Three steam settings for different soil levels
- 23-foot cord covers large rooms
- XL removable tank refills at the sink
Cons
- Sealed hard floors only
- Fixed upright body is awkward in tight corners
This is the model we kept reaching for first. The Easy Scrubber flips down from the mop head so a flat microfibre pad cleans the tile and a stiff bristle strip works the grout line in the same pass, which saves an enormous amount of time on a floor that is mostly grout. On our kitchen floor the dark line between the tiles went from grey-brown to a clean light grey in two passes with the scrubber down.
Three steam settings matter more here than they would on sealed hardwood. Light handles a weekly refresh, and Deep is what you want when someone has been cooking with the burner on and the grease has soaked into the grout for a year. The 1500-watt element heats the 16-ounce tank in about 30 seconds, so you are not standing around waiting during a multi-room clean.
The 23-foot cord is a quiet hero. Grout work is slow, and having to move the whole machine to a different outlet every few minutes is the thing that convinces people to give up. Here you can finish a laundry room or a long kitchen run in one pass.
Two things to know before you buy. This is rated for sealed hard floors, so it is tile, sealed hardwood, laminate, granite and marble, not carpet or upholstery. And the upright form factor is fixed, which means shower corners and the tight gap behind the toilet take a little extra maneuvering with the wand angle.
When this mop earns its tank of water
This is the pick for large tiled rooms where grout covers a high share of the visible surface. A kitchen floor, a hallway, a mudroom, a full bathroom floor. Anything where you are walking lines back and forth and want a consistent, well-lit result rather than a spot-cleaned patch.
It is also the safest first steam cleaner to buy if your home has mixed flooring, because the sealed-hard-floor rating matches most kitchens. The chemical-free claim on 99.9% of germs and bacteria when used as directed is the reason many families with small children choose this category at all.
Where the 1940A falls short
Vertical grout is not its strength. The scrubber is designed to push forward along a floor, so shower wall lines need the whole machine tipped upright and worked by hand, which is slower than a handheld with a concentrated nozzle. For a shower stall overhaul, a canister or a handheld unit is simply the better tool.
It also gives you no independent brush selection. You get the one scrubber and the mop pads, so if a line is stiff enough to need a brass bristle you are out of luck without a separate accessory purchase.
2. Dupray Neat Steam Cleaner – Best Heat and Brush Selection
Dupray Neat Steam Cleaner for Home Essential Pack
1500 watts
275F max temperature
8 minute heat-up
54 oz tank
17 accessories
Pros
- 275F steam temperature
- 17-piece kit with nylon and brass brushes
- 50 minutes per tank fill
- Extension tubes keep the tank in place
Cons
- 8 minute heat-up is slow
- 9-pound body is bulky to carry
Heat is the whole argument here. At 275F, this is the hottest steam in the group, roughly 60 degrees above the average steam mop, and you can feel the difference on a line that has been ignored. On our test shower wall the mildew staining came off with two slow passes of the brass brush where the cooler handhelds needed four or five.
The 17-piece kit is the most considered accessory set we tested. It ships with five nylon brushes, a brass brush, a triangle tool for tight corners, a window tool, a floor tool, a steam lance, and a microfibre bonnet. That brass brush is the part that matters for grout, and the fact that it comes in the box rather than as a separate purchase is worth a lot over the life of the machine.
Cleaning forums consistently single this machine out for grout work, and the pattern in those threads is the same one we saw: people who slow down and let the steam sit get dramatic results, and people who scrub hard while moving quickly get frustrated. Several owners report long sessions on shower surrounds and backsplashes in a single fill.
The 54-ounce tank and the long hose and extension tubes mean the tank itself stays put while you work. On a tiled floor you are not carrying nine pounds across the room, you are dragging a wand, which is exactly what you want for a long grout session.
Best choice for vertical grout and old staining
If the job is a shower, a backsplash, or a line that has gone dark from years of soap scum, the combination of hottest steam and a real brass brush is hard to beat. The triangle tool also gets into the internal corners where a square head cannot reach.
It is equally good above a stovetop, on range hood filters, and around a sink base where grease has wick-deep into the grout behind a backsplash. That is grease cleaning more than grout cleaning, but the mechanism is identical.
The tradeoff is the eight minute wait
Eight minutes to heat is the single biggest drawback here. It is a boiler-style unit, which is the trade you accept for a large tank and sustained output. If you only have ten minutes to clean, you will spend most of it waiting.
Reviewers also note the unit is bulkier than a compact handheld, and the hose plus extension tubes take up real storage space behind a utility door. Plan the location before you buy.
3. LABIGO 10-in-1 Detachable Steam Mop – Most Versatile
Steam Cleaner, 10-in-1 Detachable Handheld Steam Mop for Multi-Surface
1200 watts
248F max temperature
10 second heat-up
350ml tank
4 meter cord
Pros
- Fastest 10-second heat-up in the group
- Detachable handheld pod with 3 extension pipes
- Nylon and metal brush for grout lines
- Auto shut-off with dry-tank beep
Cons
- Floor head needs repeated passes on grout
- Lightweight plastic build
- 350ml tank is short on runtime
Ten seconds from filling the tank to full steam is genuinely fast, and on small jobs that is the entire experience. We used this for the grout around the toilet base, the strip between counter and backsplash, and the shower threshold, all tasks you want done in a few minutes rather than set up as a weekend project.
The detachable handheld pod with three extension pipes is the clever part. You snap the pod off for floor-level and grout work, or add pipes and you have a reach tool for high wall grout and window tracks. The kit also carries a nylon brush, a metal brush, a bent nozzle, a long nozzle, a window squeegee, a carpet glider, and a scraper.
Two steam levels plus an auto shut-off with a 30-second warning beep make this easy to run and easy to forget. The 4-meter cord gives you good reach for a compact machine, which means one outlet often covers a bathroom.
The honest weakness is the floor head on grout. Reviewers consistently say it does not scrub a line well without repeated passes, which makes sense given the mop-head geometry. For grout specifically, use the handheld pod with the brush attachment, not the floor pad.
Where it fits into a cleaning routine
This is the machine for a rental, a first apartment, or a household that wants a chemical-free option for a small tiled bathroom without a large commitment. Ten seconds of heat-up means it lives in a closet and gets used, which is more valuable than a better unit that stays on the shelf.
It also earns its place as a secondary tool. Even owners with a larger machine tend to reach for something this quick for the small jobs between deep cleans.
What you give up for the speed
The 350ml tank gives roughly 12 to 15 minutes per fill, so on anything larger than a bathroom you will stop often. Some buyers also report receiving a single steam level despite the listing, so check what is in the box when it arrives.
Lightweight plastic construction is the other recurring comment. It handles the work, but it is not a machine you leave in a garage or take on a job site.
4. McCulloch MC1385 Canister Steam Cleaner – Best for Large Tile Areas
McCulloch MC1385 Canister Steam Cleaner, For Grout and Tile, 23 Accessories
1500 watts
4 bar 58 PSI pressure
64 oz tank
23 accessories
18 foot cord
Pros
- Built specifically for grout and tile
- 64 oz tank gives up to 120 minutes of steam
- 23 accessories with nylon and brass brushes
- Steam lock for continuous output
Cons
- 12 minute heat-up
- No tank level indicator and a cooldown after a dry run
- 13-pound canister is the least portable design
This is the only canister in the group, and for a large tiled basement, a sunroom, or a whole main floor it is the right shape. The tank sits in one place and the 7-foot steam hose plus 18-foot power cord do the travelling, so a 64-ounce reservoir can serve a large area without a mid-clean march to the sink.
Four bar of pressure, roughly 58 PSI, is what separates it from the small handhelds. That extra push is why owners credit it with lifting heavy grout gunk in a few slow passes rather than many. The on-handle variable control and the optional steam lock for continuous output are both genuinely useful when you have a whole line to work.
The accessory list covers the job properly: nylon brushes, a brass brush, an angled nozzle, scrub pads, a scraper, a squeegee, and a floor mop. The nylon brush on the precision nozzle is the attachment to reach for, and the squeegee is what lets you pull the loosened water off the tile so the floor dries faster.
Cleaning communities treat McCulloch as one of the more trustworthy brands in this category, and the consistent advice from experienced owners is the same: light pressure, let the steam do the work, then follow with microfibre. Technique matters more than horsepower with a machine this size.
What a big job actually requires
When you have more than one room of tile, the maths changes. Refilling a 350ml handheld six times is friction, and friction is why people stop halfway. A 64-ounce tank with up to 120 minutes of steam means the whole job happens in one continuous motion, which is the difference between a clean floor and a half-clean floor.
It also handles the non-grout parts of a deep clean in the same session, including grout-adjacent detailing like car interiors and tight crevices, without a second tool.
Where the canister form frustrates people
Twelve minutes to heat is the longest wait in the group, and there is no tank level indicator, so you track remaining water by feel. Running the tank dry triggers a five to six minute cooldown before you can refill, which is the most commonly reported annoyance.
Owners also warn that the canister tips if you pull the hose hard and is awkward to move mid-mop, and that short-bristle scrub pads bend in the heat faster than the nylon brushes do. Pick the brush attachments over the soft pads for grout.
5. Phueut Pressurized Handheld Steamer – Best for Spot Cleaning
Phueut Pressurized Handheld Multi-Surface Natural Steam Cleaner with 12 pcs Accessories, Multi-Purpose Steamer for Home Use, Steamer for Cleaning Floor, Upholstery, Grout and Car (Grey)
1050 watts
230F max temperature
3-5 minute heat-up
350ml tank
3.9 pounds
Pros
- Lightest full-size handheld at 3.9 pounds
- 4 round brushes for grout and tile lines
- 3-5 minute heat-up
- Child safety cap on the fill port
Cons
- Only 8-12 minutes of steam per fill
- Lowest average rating in the group
- Cap is hard to reopen while hot
At 3.9 pounds this is the one you can hold one-handed for a full session without your wrist complaining. The four round brushes are the reason it earns a place in a grout lineup, and the cone nozzle reaches into the tight space between a tile edge and a wall where a flat head will not go.
Operation is straightforward: fill, wait three to five minutes, and work the line. The 9.8-foot cord means one outlet usually covers a bathroom, and the child safety cap on the fill port is a small detail that matters in a house with young children.
It handled the small jobs in our test well. A splash of something on the backsplash, grout that had darkened along a wall edge, the strip of grout around a laundry sink. Those are the things a small handheld was built for, and at 230F with some pressure behind it, the results were clean.
It is also the lightest option in the group, which matters if grout work is above your shoulder height or if you are moving between a bathroom and a kitchen constantly.
Ideal for a bathroom, not a whole house
The pattern here is quality of focus. Use it on one shower, one backsplash, or a set of small patches, and it will do a genuinely good job. Bring it to a large tiled floor and the eight to twelve minutes per fill turns the job into a relay run.
It is a sensible second machine for a home that already has a floor steam mop, because the floor machine should not be doing vertical grout and this should not be doing whole-room floors.
Where buyers report friction
It has the lowest average rating in the lineup at 4.0 stars, and the reviews are more spread out in both directions than the others. Short run time is the main negative, along with the safety cap needing care when it is hot.
The recommended fill is within 280ml of the 350ml tank, which is worth knowing before you fill it to the line and find the machine unhappy.
6. Koutop Handheld Steam Cleaner – Best for Long Sessions
Koutop Steam Cleaner for Home & Car-Portable Handheld Steamer for Cleaning with 3-Level Handle, 15s Heat-Up, Large Tank, 16 Accessories – Clean Grease, Grout, Tile, Floor, Couch, Dirt, Furniture
50 PSI pressure
221F max temperature
15 second heat-up
1400ml tank
79 inch cord
Pros
- 1400ml tank gives 45+ minutes of steam
- 50 PSI high-pressure output
- 15-second heat-up
- 79-inch hose and cord for 158 inches of reach
Cons
- Lowest steam temperature in the lineup at 221F
- ABS fittings may not handle long high-heat use
A 1400ml tank in a machine that weighs 4.4 pounds is an unusual balance, and it is the reason this one kept working after the other handhelds needed refills. Forty-five-plus minutes of continuous steam is enough to do a full bathroom and a kitchen backsplash in one fill, which changes how you plan a grout session.
The 50 PSI output and the included brass brush are the grout-specific parts of the package. The 16-piece kit also carries a high-pressure nozzle, an extension nozzle, a narrow car-vent nozzle, a fabric guard, a round brush, a nylon brush, a cleaning towel, and heat-resistant gloves.
Heat-up is 15 seconds and the steam dial on the handle offers three levels, so you can dial down for a delicate surface and up for a stubborn line without swapping anything. Seventy percent of buyers give it five stars, and the tank and reach are the two things they name most often.
Reach is the sleeper feature. A 79-inch hose combined with a 79-inch cord gives 158 inches of total reach, so you can clean ceiling-height grout near a window or the underside of a cabinet without a ladder.
When a long session is the plan
Owners who do a full-house deep clean in one sitting tend to name this as their pick. Nobody wants to refill four times on a staircase landing, and 45 minutes of output is roughly the length of a real grout project before you need a break anyway.
The gloves in the box are not filler. Working a 1400ml unit’s wand near a steam line for 40 minutes without protection is uncomfortable, and the manufacturer included them for a reason.
The temperature ceiling is the limit
At 221F this is the coolest steam among the larger-tank handhelds in the lineup. It means more dwell time on genuinely old grout gunk, and it is why owners caution against rushing the nozzle along a line.
Ten percent of reviews focus on durability of the ABS plastic and the hose fittings under sustained high heat. Over a single household cleaning routine that is not a concern, but it is worth factoring in if you clean professionally.
7. Fololicx 1.6L Handheld Steamer – Best Tank Capacity
Steam Cleaner for Home & Car, 15s Fast Heat Handheld Steamer for Cleaning, 1.6L Large Tank, 3-Level Steam Control with 16-Piece Accessories Kit for Floors, Couches, Tiles, Grout, Dirt, and Grease
105C steam
15 second heat-up
1600ml tank
138 inch reach
17 piece kit
Pros
- Largest tank in the lineup at 1600ml
- 15-second heat-up
- 138-inch combined hose and cord reach
- 17-tool kit with grout scrubbers
Cons
- Attachment heads warp and loosen with heat
- No replacement nozzles sold by the brand
- Minimal printed instructions
The 1.6-litre tank is the largest of any machine we tested, and 138 inches of combined hose and cord reach is enough to work under a couch or into a car interior without dragging the body. On paper this is the least likely machine to interrupt you mid-task, and the 17-tool kit includes dedicated grout scrubbers alongside narrow nozzles and fabric tools.
Buyers tell the same story repeatedly: the cleaning power on old grout is genuinely impressive, and several report restoring decades-old grout in their own home. Steam control has three levels on the handle, heat-up is 15 seconds, and the output is a 105C jet.
Reaching under a couch or deep into a car interior is where that reach pays off. You can keep the body outside the vehicle and work the interior through the wand, which no compact unit in the lineup allows.
Our own testing matched the reviews. On a section of shower floor grout with heavy soap scum, a few slow passes with the narrow nozzle produced one of the cleaner results we got from any handheld.
For a whole-area deep clean in one sitting
If your grout job is a large tiled area, a garage floor, or a deep clean you intend to finish in a single session, the capacity removes the main reason people abandon these jobs halfway. One fill covers the work and you do not plan your break around a water bottle.
It suits a household that also wants to detail a vehicle or clean fabric, because the 17-piece kit and the long reach cover all three without another tool.
Plan for the accessories
Attachment heads warp and loosen on the extension rod under sustained heat, which is the most common complaint in the reviews. And replacement nylon and brass nozzles are not sold by the brand, so if a head fails you are sourcing it elsewhere.
The packaging is unbranded generic with email-only support, and there is very little printed guidance on which attachment belongs where. Budget a few minutes with the included manual before your first use, because guessing at the setup wastes a tank of water.
8. WSRYYCC 6-Level Handheld Steamer – Best Steam Control
Steam Cleaner, Portable Steamer for Cleaning with 16pcs Accessories, 6-Level Adjustable, 15s Heat-Up, Handheld Steam Cleaner for Home for Tile, Grease, Dirt, Grout, Car Detailing, Light Orange
1500 watts
3 BAR pressure
221F max temperature
15 second heat-up
1.25L tank
Pros
- Six steam levels for fine adjustment
- 1500W with 3 BAR pressure
- 1.25L tank larger than most handhelds
- 16 accessories with copper and nylon brushes
Cons
- 221F is the lowest temperature among larger-tank handhelds
- Shorter 4.92 foot cord
- Durability complaints in the one-star share
Six adjustable levels is finer control than anything else in the group, and it is the feature that has a real reason to exist in a grout job. Start high on a stubborn line, step down when you are near sealed stone or a coloured grout you do not want to bleach out, and the touch controls sit right on the handle.
The 1500-watt motor pushing 3 BAR of pressure, ready in 15 seconds, is a strong combination for a unit of this size. The 1.25-litre tank is also a step up from the 350ml handhelds, which is the other common size in this category.
The brush selection is the grout detail here. Two small nylon brushes, one large nylon brush, and two small copper brushes give you soft, medium and firm options in the same box, plus a scraper, a glass brush, a bend nozzle, a window wiper strip, cleaning pin, gloves and cloth sleeves.
It ranks at the top of the Home and Kitchen handheld steamer category, and 71 percent of buyers give five stars. The copper and nylon brush pairing is the most common positive mention after the steam control.
Dialing down for coloured grout
If your grout is coloured, sandy, or a light epoxy that you have already noticed discolouring, that middle of the dial range is where this machine earns its keep. You can hold a lower intensity against the line long enough to lift grime without the full-heat dwell.
It also makes this a reasonable pick for mixed flooring, since a lower setting is a sensible compromise on a neighbouring surface that is less heat-tolerant than tile.
Watch the cord and the temperature
The 4.92-foot power cord is the shortest of the larger-tank handhelds, and the 6.6-foot steam hose is what makes up the difference in reach. On a large floor you will be moving the base more often than with the longer-cord units.
At 221F it sits at the bottom of the temperature range for a tank this size, so old grout needs more dwell time. Thirteen percent one-star reviews point to durability and performance inconsistency, so check the unit early and register it.
9. Shark Steam and Scrub S8001 – Best for Whole-Floor Cleaning
Shark Steam & Scrub Steam Mop, All-in-One Hard Floor Cleaner, Grey, S8001
1120 watts
Over 150 scrubs per minute
3 steam modes
11.83 oz tank
6.9 pounds
Pros
- Rotating pads deliver over 150 scrubs per minute
- Three steam modes including a low setting for sealed hardwood
- LED headlights reveal hidden debris
- Machine washable Dirt-Grip pads
Cons
- Will not scrub grout lines hard enough
- Round heads cannot reach inside corners
- Small tank needs three or four refills
We want to be straight about this one: the Shark Steam and Scrub is built for floors, not grout lines. The rotating head drives over 150 scrubs per minute, which is roughly double the stuck-on stain removal of a traditional steam mop, and the result on a large tile floor is the fastest of any machine we tested.
It earns a place on this list for a different reason. The rotating pads and the aggressive scrubbing action pick up the film and residue that the narrow grout tools leave behind, and the LED headlights show you the debris that a wet mop would push around. Run a grout brush along the lines first, then follow with this to reset the whole floor.
Three steam modes matter on mixed floors. Light is the right choice on sealed hardwood, and Deep is what you want on a dirty tile kitchen. The removable tank refills in seconds without inverting the machine, and the Dirt-Grip pads go in a washing machine.
Owners consistently praise how little effort the floor requires and how much faster it dries than a wet mop. Several mention using the lower mode on hardwood without any finish damage.
Best used as the second half of a grout job
Think of it as the partner to whichever handheld or canister you choose. The brush tool works the line, the Shark resets the tile around it. Doing grout first and the floor second is the sequence that gives a consistent finish, because you are not re-soiling the tile you just cleaned.
For a home with a lot of tile and light grout staining, this alone may be enough. The rotating pads will lift surface discoloration even where they cannot reach into the line.
Why it is not a grout answer
The round mop heads are wide and flat, and they cannot get into a grout channel or an inside corner. Several owners also report the round head catching rug edges.
The 11.83-ounce tank means three or four refills for a whole house, and the cord is short enough that extension cords are not recommended, so you need a plan for power outlets before you start.
10. Bissell PowerSteamer 2685A – Best 3-in-1 Conversion
BISSELL PowerSteamer Heavy Duty 3-in-1 Steam Mop, 2685A
1500 watts
13 inch cleaning path
11.8 oz tank
26 attachments
6.1 pounds
Pros
- Converts from upright mop to wand to handheld
- 26 attachments with round brushes owners prefer on grout
- On-demand trigger with variable steam modes
- Long attached power cord
Cons
- Heavy in handheld mode for grout work
- No trigger lock so you must hold it down
- Flimsy non-mop accessories
This is the machine for someone who wants one tool instead of three. It runs as an upright floor mop, converts to an extended-reach wand for walls and high grout, and detaches into a handheld steamer for the line work. All three modes use the same 1500-watt element, so the heat is consistent as you move up a shower wall.
The 26 attachments are the headline number, and the ones that matter for this topic are the round brushes. Owners frequently rate those above the flat grout brush for working into a line, because the round profile follows the channel instead of bridging it. Several report using this machine on years of accumulated grout grime as well as paint and tape residue.
It kills 99.9% of germs and bacteria with variable steam modes and an on-demand trigger, and the long attached cord means you are not managing an extension lead across a wet floor. The 13-inch cleaning path is wide for a steam mop, which helps on the large floor areas it is built for.
Our test showed the same pattern as the reviews. On a 1990s kitchen floor with dark grout, one session with the round brush in handheld mode and a slow pass made a visible difference across the whole room.
For households that clean floors, walls, and furniture
If the grout is one of four surfaces you need to handle, this earns its place where a dedicated grout tool would leave you wanting a floor machine and a separate handheld anyway. The conversion takes seconds, so switching from floor to grout mid-session is realistic.
Buyers describe it as a durable workhorse rather than a gadget, and multi-year ownership reports are common. It is also wall-mountable, which matters in a small utility room.
Fatigue is the real cost
At 6.1 pounds it is fine as an upright mop and tiring as a handheld, and grout work is a hunched-over, arm-heavy job. That is why we use it for lines but recommend a lighter unit for a whole shower floor.
There is also no trigger lock, so you hold the trigger down for the entire pass, and the non-mop accessories are described as flimsy with scrubber tools wearing out quickly. Avoid parking the hot head in one spot, because the heat can mark a floor finish.
What to Look for in a Steam Cleaner for Grout
Every machine in this guide cleans grout to some degree. The differences that decide which one you keep using come down to five things, and you can check all of them before you buy.
Steam temperature, and why pressure matters just as much
Temperature decides how fast heat moves into a porous line. In this group the range runs from 221F up to 275F, and the hottest unit here is the one most owners credit with removing old staining in a single pass. Cooler steam still works, but it wants more dwell time, which means more passes and more patience.
Pressure is the second half of the equation. The McCulloch runs 4 bar, the Koutop 50 PSI, and the WSRYYCC 3 BAR. Higher pressure pushes the vapour further into the pore structure rather than sitting on the surface, which is exactly what you want for a line that has absorbed years of grease.
Form factor: stick mop, handheld, or canister
Three shapes exist and each suits a different job. An upright or stick steam mop covers large floors quickly and is comfortable for long horizontal runs, but it is clumsy on vertical grout. A handheld is the reverse: superb on a shower wall or a backsplash, tedious across a large floor because of the small tank.
A canister sits in one spot and sends a hose out to the work, which is the most efficient arrangement for a big tiled area and the least convenient for a cupboard shelf. If your grout is mostly floor, weight the mop and canister. If it is mostly walls and corners, weight the handheld.
Heat-up time, tank size, and refill discipline
These two specs trade off directly. The fastest heat-up here is 10 seconds on a 350ml tank that runs 12 to 15 minutes. The longest is 12 minutes on a 64-ounce canister that delivers up to 120 minutes of steam.
Ask yourself how long a realistic grout session is. If it is ten minutes of spot work, fast heat-up wins. If it is an afternoon of tiled rooms, tank capacity wins every time, because the number of refills is what actually ends a clean early.
Brush attachments: nylon, brass, and copper
The brush does the mechanical work while the steam does the chemical work, and a soft pad alone will not shift a stiff line. A nylon brush is the safe default for ceramic and porcelain tile and for coloured grout. A brass or copper brush is for stubborn cement grout and decades-old buildup, at the cost of being harder on the surface, so use it sparingly on anything delicate.
Check what is in the box, not just what the listing implies. Two units here carry brushes in the kit, and one of them does not sell replacement heads, which is a real long-term cost.
Damage risks, water type, and floor compatibility
Before you plug anything in, know what you cannot steam. Unsealed natural stone will take moisture and stain. Cracked or failed grout can open further with repeated heat and moisture exposure, so check your lines and replace failing grout before you clean it. Laminate and unsealed hardwood are not suitable surfaces.
Fill with distilled water wherever you can. Hard water deposits build inside a boiler or nozzle over time and eventually block steam output, and distilled water is the single cheapest way to extend the life of the machine. Descale on the manufacturer’s schedule rather than waiting for the symptoms.
One more practical note. Vacuum or sweep before you steam. Loose grit under a hot nozzle becomes an abrasive, and you will scratch a floor that looked perfect before you started.
How to Clean Grout with Steam: The Grout-First Method
Grout-first means cleaning the lines before the tile, and it is the sequence most experienced owners in cleaning communities use. Steam loosens grime that runs toward the surface, and if you have already mopped the tile you are just pushing that dirty water back into the line you cleaned.
Vacuum or sweep the whole area first to remove grit and loose dirt.
Fill the tank with distilled water and let the unit reach full temperature. Do not rush this step; underheated steam mostly just dampens.
Start at the far corner and work toward yourself so you are not walking over finished lines.
Fit the narrow nylon brush and hold the nozzle a few inches from the line. Move slowly.
Let the steam sit on each section for several seconds before you advance, rather than dragging continuously.
Wipe the loosened material away with a microfibre cloth immediately, before it soaks back in.
Drop down a steam level or switch to the brass brush only for lines that did not respond to nylon.
Work the tile faces last with a mop pad or rotating head, then use a squeegee on wet areas to speed drying.
Keep a microfibre cloth in your off hand. The single most common mistake is spraying loosened grime onto a neighbouring tile and leaving it there, which is how a clean bathroom floor ends up with a haze of grey streaks that has to be done again.
For more on the appliance side of steam, our countertop steam oven roundup covers a different category, but the heat-control principles carry over if you want to understand what temperature does to a surface.
Frequently Asked Questions
Will a steam cleaner clean my grout?
Yes. Superheated steam penetrates the pores in grout, the heat loosens grime bonded to the cement or epoxy, and the pressure pushes that material to the surface where a brush and microfibre cloth remove it. Results depend on how long the soil has been there. Light discoloration lifts in one pass; decades of soap scum or grease needs a hotter unit like the 275F Dupray Neat and several slow passes.
Are steam cleaners good for tile grout?
They are one of the best tools available for the job because grout is porous and recessed, so a mop skips over the dirtiest part of the floor. Steam needs no caustic cleaner, so it does not degrade grout sealant the way harsh chemicals do. The main caution is surface compatibility: do not use steam on unsealed natural stone, and check cracked or failing grout first.
Do you have to reseal grout after steam cleaning?
Usually not, because steam cleaning removes grime without stripping a chemical sealer the way acidic or alkaline cleaners do. Sealed grout that was properly sealed will still be sealed afterwards. The exception is unsealed grout that you want to keep protected, where a penetrating sealer after drying is good practice. If the grout was already failing or crumbling, steam cleaning is not a repair, and resealing will not fix it.
What type of mop is best for cleaning tiles and grout?
For floor grout, a steam mop with a flip-down scrubber or rotating pads covers the most area with the least effort. For grout in showers, on backsplashes, or along walls, a handheld steamer with a narrow nylon or brass brush is far more precise. A canister with a long hose is the efficient option when you have several large tiled rooms to cover in one session.
What do professionals use to clean grout?
Professionals typically use a combination rather than one tool. Truck-mounted or extraction systems use very hot water under pressure with a rotating brush head to flush grout lines, and some use a steam wand for vertical surfaces. Heavy alkaline or oxygen-based cleaners do the chemical work. A home steam cleaner works on the same principle at a smaller scale, with less throughput per hour but no chemical residue.
Why does my grout look darker after steam cleaning?
That is moisture, not damage. Grout is porous, and cleaning opens the pores so they take on water and appear much darker while wet. It lightens as it dries, usually within a few hours. If it stays dark after a full day of drying, the grout was not clean to begin with and needs a second pass with a hotter unit or a brass brush.
Can steam cleaning remove mold from grout in a shower?
Steam kills surface mold on contact, and several units in this group claim 99.9% of germs and bacteria are removed when used as directed. What steam does not do is reach the root. If the mold has grown through the grout itself or behind the surface, cleaning treats the visible growth and the line will return without addressing the moisture source and resealing.
The Verdict on the Best Steam Cleaners for Grout
After six weeks and ten machines, the Bissell PowerFresh 1940A is the best steam cleaner for grout for most homes, because the flip-down Easy Scrubber handles lines and tile in the same pass and the 23-foot cord removes the interruption that ends most cleaning sessions. For vertical grout and old staining, the Dupray Neat wins on 275F heat and a brass brush in the box. For a large tiled area, the McCulloch MC1385 gets the job done in one fill, and for quick ten-minute touch-ups, the LABIGO is hard to argue with.
Whichever you pick, the technique decides the result. Vacuum first, go slow, keep a cloth in your off hand, and the grout-first sequence will give you a floor that stays clean far longer than one more round of mopping and chemicals ever will. See also our guide to the best steam ovens for artisan bread if you want the same heat reasoning applied to baking.