Tablets, Oxi Powder and Gasket Gel for a Washer That Smells, and the Odors No Cleaner Can Reach
5 picks compared · prices, ratings and stock checked November 5, 2026
Our Top Pick
For most washers, the Affresh Washing Machine Cleaner Tablets: one tablet a month on the clean-washer cycle, septic safe and EPA Safer Choice certified per the listing. For black spots on a front-load door seal, add the ACTIVE Mold Stain Remover Gel, because a drum cleaner does not sit on the gasket long enough to lift them.
4.7 on Amazon · 251,815 ratings
Quick answer
The best washing machine cleaner for most homes is a monthly tablet run on an empty clean-washer cycle: the Affresh Washing Machine Cleaner Tablets, rated 4.7 stars across 251,815 Amazon ratings, take 1 tablet a month and are septic safe and EPA Safer Choice certified per the listing. If you prefer a powder for hard water, choose the Tide Washing Machine Cleaner with Oxi; if pet hair is the problem, the Uproot Clean tablets. Stains on a front-load door seal need a gasket gel instead. If the washer still smells after 2 or 3 cleaning cycles, check the drain pump filter and the drain hose before buying more cleaner.
Every pick below is currently stocked — ratings and stock read from Amazon on 5 November 2026.
Best for: Routine monthly cleaning of any front-load, top-load or HE washer, including homes on a septic system
Listing verified 5 Nov 2026
Best for: Washers on hard water, and owners who want an oxygen-bleach cleaner with a known name on the box
Listing verified 5 Nov 2026
Best for: Households that want a year of cleaner in one box and do not mind a twice-monthly cycle
Listing verified 5 Nov 2026
Best for: Homes that wash dog beds and pet blankets, where hair builds up in the tub and filter
Listing verified 5 Nov 2026
Best for: Black spots and gray staining in the folds of a front-load washer's door gasket
Listing verified 5 Nov 2026
How this page was made: we compare the current Amazon listings, the makers' published specs and what verified buyers report, then rank by fit for the job. Ratings, review counts and stock are read from Amazon and dated. We earn a commission on purchases through our links; it does not change the order. Reviewed by Marcus Reed, IICRC-certified Water Restoration Technician.
Full Reviews
Each pick in detail: what the listing states, what buyers report, and where it falls short.
Check price
on Amazon ↗
Listing verified 5 Nov 2026
See it on Amazon ↗Best Overall
Quick Verdict
Affresh Washing Machine Cleaner Tablets: the monthly default for any washer, septic safe and made by the brand Whirlpool recommends.
Key Specs
Form
Time-release tablet
Pack
6 tablets; a 12-tablet pack is listed separately
Schedule (stated)
One tablet once a month
Washer types (stated)
All makes and models, front load, top load and HE
Certification (stated)
EPA Safer Choice certified; septic safe
Brand note (stated)
The cleaner brand recommended by Whirlpool, Maytag and Amana
Pros
Cons
Suited to
Routine monthly cleaning of any front-load, top-load or HE washer, including homes on a septic system
Our take
Affresh is the cleaner the Whirlpool family of brands points its owners to, and that matters more than it sounds: many washer manuals name a cleaner for the clean-washer cycle, and using the named one removes a question if you ever have a warranty claim. The tablet is built to release slowly through a full cycle, which suits the residue it targets, a film of detergent and softener that coats the outer tub and pump housing where you cannot reach. Run it with the drum empty on the clean-washer or hottest normal setting. For a washer that already smells, two cycles a week apart usually show whether residue was the cause. If the smell stays, the cleaner has done its part and the problem is somewhere water is sitting, such as the drain pump filter or a sagging drain hose.
Affiliate link — commission at no extra cost to you
Compare elsewhere
These open a search for this model. We quote prices only where we can verify them — Amazon, Sylvane and eBay.
Check price
on Amazon ↗
Listing verified 5 Nov 2026
See it on Amazon ↗Best Powder for Hard Water
Quick Verdict
Tide Washing Machine Cleaner with Oxi: an oxygen powder with a stated hard-water claim, for scale-prone washers.
Key Specs
Form
Powder in single-use packets
Pack (stated)
5 month supply
Formula (stated)
Oxygen cleaner plus TAED activator and surface-active ingredients
Hard water (stated)
TAED boost said to work even in hard water
Septic (stated)
Septic safe
Maker (stated)
Made by Nehemiah Manufacturing under license from P&G
Pros
Cons
Suited to
Washers on hard water, and owners who want an oxygen-bleach cleaner with a known name on the box
Our take
Hard water leaves mineral scale that binds detergent residue to the tub, which is why a washer on a well or in a hard-water city can smell again a few weeks after a clean. This powder pairs an oxygen cleaner with TAED, an activator commonly used so oxygen bleach works without very hot water, and the listing says that combination keeps working in hard water. That makes it a sensible choice where your water heater is set low or the washer's clean cycle does not heat much. Pour one packet into the empty drum, not the dispenser, unless your manual says otherwise. Read the box once: the listing says it is made by Nehemiah Manufacturing under a P&G license, so the Tide name is a brand license rather than a Tide-made formula.
Affiliate link — commission at no extra cost to you
Compare elsewhere
Check price
on Amazon ↗
Listing verified 5 Nov 2026
See it on Amazon ↗Best Year Supply
Quick Verdict
ACTIVE Washing Machine Cleaner Descaler 24 Pack: a year or more of tablets in one box, aimed at hard-water buildup.
Key Specs
Form
Effervescent foaming tablet
Pack (stated)
24 tablets, a 12 month supply
Washer types (stated)
HE and standard top loaders and front loaders; not for dryers
Brands named (stated)
GE, LG, Samsung, Whirlpool, Maytag, Electrolux and others
Claims (stated)
Breaks down grime and hard-water buildup; freshens the basket, rubber gasket and internal parts
Septic (stated)
Septic safe
Pros
Cons
Suited to
Households that want a year of cleaner in one box and do not mind a twice-monthly cycle
Our take
This is the bulk tablet with the largest rating count in the category, and its appeal is simple: 24 tablets for a year means you are not reordering every few months. The listing pitches it as a descaler as well as a deodorizer, so it is aimed at the same hard-water film the Tide powder targets, though without naming the chemistry. It counts 24 tablets as 12 months, which works out to two cleans a month; once a month is enough for most washers that are not smelling, so the box can last longer. Drop the tablet in the empty drum and run the clean-washer cycle. If foam is still in the window at the end, run a rinse cycle before the next load. Do not put it in the dryer, which the listing itself warns against.
Affiliate link — commission at no extra cost to you
Compare elsewhere
Check price
on Amazon ↗
Listing verified 5 Nov 2026
See it on Amazon ↗Best for Pet Hair
Quick Verdict
Uproot Clean Tablets for Pet Owners: an enzyme tablet for washers that handle pet bedding, after the filter is cleared.
Key Specs
Form
Tablet with an enzyme blend and tea polyphenols
Pack (stated)
24 tablets, a 12 month supply
Washer types (stated)
HE, top load and front load
Pet hair (stated)
Active enzymes help dissolve hair and fur to reduce clogs
Directions (stated)
Empty drum, tablet in the drum not the dispenser, Normal/Hot or Clean Washer cycle, wipe residue after
Septic
Not stated on the listing bullets
Pros
Cons
Suited to
Homes that wash dog beds and pet blankets, where hair builds up in the tub and filter
Our take
Pet hair is the debris that turns a smelly washer into a slow-draining one: it mats with lint in the drain pump filter and the sump, holds water there between loads, and that standing water is what smells. This tablet is the one pick formulated for it, with an enzyme blend the listing says helps break down hair and fur. Treat that as maintenance, not a fix: a clump already in the filter will not dissolve in one cycle, so open the filter first, clear it, then run the tablet. Follow the listing's direction to put it in the drum, not the detergent drawer. If you are on a septic system, note that this listing does not make the septic-safe claim the other tablets do, and pick Affresh if that matters to you.
Affiliate link — commission at no extra cost to you
Compare elsewhere
Check price
on Amazon ↗
Listing verified 5 Nov 2026
See it on Amazon ↗Best for Door Seal Stains
Quick Verdict
ACTIVE Mold Stain Remover Gel: the gasket treatment a drum cleaner cannot replace, with a five-hour dwell.
Key Specs
Form
Gel in a 7 fl oz bottle
Use (stated)
Front-load washer rubber gaskets, refrigerator seals, grout, caulk and shower walls
Dwell time (stated)
Leave on at least five hours, then wipe and rinse
Claim (stated)
Removes discoloration, black spots and buildup from mold stains
Supply (stated)
Up to a year per bottle
Kills mold
Not claimed on the listing; it is sold as a stain remover
Pros
Cons
Suited to
Black spots and gray staining in the folds of a front-load washer's door gasket
Our take
A drum cleaner barely touches the door gasket; the black spots in its folds need a product that sits there for hours. Per the listing: shake it, coat the stained rubber, leave it at least five hours, then wipe and rinse. Two honest limits. The listing sells it as a stain remover and does not claim to kill mold, and EPA's general advice is to scrub mold off hard surfaces with detergent and water and fix the moisture that let it grow. On a gasket, that moisture is the water left in the bottom fold after every load, so wipe it dry and leave the door ajar after washing. Stains that come back within weeks mean the seal is staying wet; a torn or hardened gasket needs replacing.
Affiliate link — commission at no extra cost to you
Compare elsewhere
What to know before you buy.
A washer that smells musty is usually holding residue and water in places you never see. Detergent and fabric softener that do not rinse away coat the outer tub, the underside of the drum and the pump housing, and that film stays damp between loads. Front-load washers add the door gasket, whose bottom fold keeps a little water after every cycle, and the drain pump filter behind the small access panel at the base, where lint, hair and coins collect in standing water. A washer cleaner deals with the film. It does not empty the filter, unblock a drain hose or dry the gasket. So the order that works is: open the filter and clear it, wipe the gasket, then run the cleaner on an empty drum. A sewage or rotten-egg smell is a different problem, often a dry trap or a drain issue, which the washer-smells guide sorts by smell.
Tablets are the easy routine: one dropped in an empty drum, one cycle, done. Affresh releases slowly through the cycle, while the ACTIVE and Uproot tablets fizz and break down into a scrubbing powder, per their listings. Powder packets, like the Tide pick, dissolve fast and carry an oxygen cleaner, which suits short cycles and hard water. Gel is not a drum cleaner at all: it is applied by hand to the door seal and left for hours to lift stains. Most front-load owners end up with two products, a monthly tablet or powder for the tub and a gel for the gasket a few times a year. Top-load owners rarely need the gel. Check your manual before you buy; many makers name the cleaner and cycle their clean-washer setting expects, and following it avoids arguments later about a warranty repair.
Empty the washer completely. Clear the drain pump filter on a front-loader first, with a shallow tray and towels under the access panel, because it releases the water trapped behind it. Wipe the gasket folds and pull out anything caught there. Put the tablet or powder in the drum unless the instructions say the dispenser; Uproot's listing specifically says the drum. Run the clean-washer cycle, or the hottest normal cycle if your washer has none. When it ends, wipe away any residue inside the door and the gasket, then leave the door and the detergent drawer open so the inside dries. Once a month is the schedule Affresh gives and a reasonable default for any brand. A washer that is used daily, handles pet bedding or runs mostly cold washes may need it more often, and a smell coming back within a week points to standing water, not residue.
The cleaner treats a symptom of three habits. Too much detergent is the first: HE washers use little water, and extra detergent stays behind as film, so measure to the line on the cap, or less with soft water. Fabric softener is the second, since it is designed to leave a coating and does the same inside the machine. The third is closing the door on a wet front-loader, which traps humid air against the gasket for days. Leaving the door ajar after the last load of the day and wiping the bottom gasket fold with a towel does more for a front-loader than any product on this page. Move wet laundry to the dryer promptly as well. If the clothes themselves come out wet and smelling, the washer may not be draining or spinning properly, which is a repair, not a cleaning job.
A cleaner will not help if the smell comes from water that cannot leave. A washer that leaves clothes soaking, shows an error code for draining, or holds water in the drum after a cycle has a blocked pump filter, a kinked or clogged drain hose, or a failing drain pump, and the guide on wet clothes covers those. Water on the floor in front of a front-loader is a gasket, latch or suds problem, not a cleaning one. A rotten-egg or sewage smell near the washer often comes from the standpipe or a dry floor-drain trap, which no tub cleaner reaches. And if the washer is old, smells after every fix, and needs a pump or bearings, the repair-or-replace guide is the better read before spending more. Buy a cleaner for a washer that works but smells; get the repair for one that does not drain.
YesFor the musty smell caused by detergent and softener residue, which is the most common washer odor.
A tablet or powder run on an empty clean-washer cycle loosens the film on the outer tub and pump housing that you cannot reach by hand. It does not work on a clogged drain pump filter, a blocked drain hose or a wet door gasket, so clear and wipe those first and expect results within 2 cleaning cycles.
Not reliably, and most listings do not claim it; they talk about removing residue and odor. EPA's general advice is to scrub mold off hard surfaces with detergent and water and fix the moisture behind it.
In a washer, that means wiping the door gasket dry after use, leaving the door open, and using a gel such as ACTIVE's on stained gasket folds. A gasket that keeps growing black spots may need replacing.
Usually yesMost tablet and powder cleaners go straight into the empty drum, and the Uproot listing says outright not to put its tablet in the detergent compartment.
A few washer manuals direct the cleaner to the dispenser, so check yours first. Either way, run it with nothing else in the washer.
Affresh, Tide and ACTIVE's 24-pack all state septic safe on their listings, and Affresh adds EPA Safer Choice certification.
The Uproot pet tablets do not make that claim on their listing, which does not mean they harm a septic tank, only that the maker has not said so. On a septic system, a once-a-month cycle with a stated septic-safe product is the safe default.
For routine cleaning, a made-for-purpose cleaner is the safer choice, because some washer manuals caution against frequent vinegar use on rubber seals and hoses.
Vinegar is a mild acid that can help with light mineral scale but does little against greasy detergent film. If you use it, do so occasionally and never in the same cycle as bleach, since mixing the two gives off chlorine gas.
Once a month suits most washers, and it is the schedule Affresh states for its tablets. Clean more often if you wash pet bedding, run mostly cold cycles, use a lot of softener or have hard water. Clear a front-loader's drain pump filter every few months as well, and wipe the door gasket after the last load each day.
Call (888) 840-6512. The line is answered 24 hours a day, seven days a week, and connects you with an IICRC-certified water damage restoration company that serves your area. A recorded menu picks up first: choose water damage or mold, key in your 5-digit ZIP code, and hold through the short silence while the call is passed to the company.
Describe what you can see — where the water is coming from, how long it has been there, and whether it smells — the more specific you are, the faster the right company is on the line. If the source is a pipe or an appliance, shut the main water valve first. Have four things ready and the call goes quickly: the address, when the water started, what is wet now, and whether you have filed an insurance claim.
Still not sure which of these is your situation? (888) 840-6512 · toll-free · answered 24/7
Methodology: How we source and verify data · Report an error
Free 2-day shipping
Amazon Prime members pay no shipping on restoration equipment
Dehumidifiers, air movers, and moisture meters qualify for free Prime delivery — bulk items that otherwise cost $15–$40 to ship.
Affiliate link — HearthDry earns a bounty if you sign up; costs you nothing extra.
A washing machine's two fill hoses sit under full house pressure whenever the valves are open, and an old rubber hose that splits keeps releasing water until someone closes the valve. These picks are braided stainless hoses compared on fittings, length, elbows and what each listing actually states, with the replacement habit and the shutoff valve that a better hose does not replace.
Read the comparisonA washing machine drain pan catches drips and small overflows under the washer, and only a pan with a drain port can send that water away instead of holding it. These picks are compared on inside size, wall height, drain port and material, with the gallons-per-inch math and the burst-hose risk that no pan covers.
Read the comparisonMildew on clothes comes out mostly in the wash and the dry, so the product you buy is for the mark it leaves, and it has to suit the fabric: color-safe for clothes, a bleach cleaner only for outdoor fabrics labeled for it. These picks cover washable clothes, patio cushions, the washer gasket behind musty towels and the damp closet that started it.
Read the comparisonAnti vibration pads grip the floor and soak up some of the buzz a washer sends into it, which stops a level machine from walking during the spin. They cannot fix a washer that shakes because something inside it is worn, so level the machine first and read the limits below before you buy.
Read the comparison