Topappliancesreviews.com is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Learn more

20 Best Load Washing Machine Cleaner of 2026 To Stop Musty Odor

Prime for Young Adults: check your eligibility on Amazon

Clean laundry should never smell like mildew. Every wash cycle leaves behind traces of liquid softener, skin oils, and damp lint. Over months of cold-water loads, that slick residue coats hidden outer drums and settles deep inside rubber door gaskets, creating a moist habitat for stubborn washer mildew. Regular laundry detergent cannot break down this hardened sludge. Running empty rinse cycles just wastes water, leaving musty grime behind to taint every fresh shirt and towel that enters the tub.

Getting rid of the stench permanently requires an active agent that breaks down accumulated scum rather than temporarily masking it behind floral perfume. The most effective formulas rely on oxygen-based descaling agents that foam through outer tub walls, clean the internal drain pump, and rinse away cleanly without damaging home septic systems. The right match depends on your specific setup, from high-foaming powders for deep top load basins to mold-targeting tablets built for front load door seals. Here is a clear look at the standout options ready to restore your wash tub.

1
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    8.8
  • Brand
    Clean Elements
2
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.5
  • Brand
    Affresh
3
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    8.9
  • Brand
    ACTIVE
4
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    8.4
  • Brand
    Tide
5
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.1
  • Brand
    Tide
6
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    7.9
  • Brand
    ACTIVE
7
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.6
  • Brand
    OxiClean
8
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.7
  • Brand
    Affresh
9
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    8.2
  • Brand
    ACTIVE
10
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    7.1
  • Brand
    Uproot Clean
11
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    8.9
  • Brand
    iO CLEAN
12
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    7.4
  • Brand
    Caspeak
13
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.2
  • Brand
    Bastion
14
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    7.7
  • Brand
    MIGHTY CLEAN
15
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.1
  • Brand
    Renuv
16
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.5
  • Brand
    Seventh Generation
17
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    7.5
  • Brand
    Palksky
18
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    9.5
  • Brand
    Generic
19
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    8.7
  • Brand
    IWOOFI
20
  • TAR Score

    TAR Score is a ranking system developed by TopAppliancesReviews.com. TAR score has no relationship or impact from any manufacturers or sales agent websites. Learn more

    7.5
  • Brand
    SHIMMERIX

Last update on 2026-09-18 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

Do washing machine cleaners work in both front load and top load HE machines?

Yes. Most dedicated washing machine cleaner tablets, including slow-dissolving and Oxi-based formulas, are designed for both front loader and top load washers, including high-efficiency (HE) models. Because HE front loaders use minimal water, the tablets dissolve gradually to circulate active cleaning foam across the entire drum interior. In top load washers, the formula disperses throughout the deeper water volume to clean inside the drum and laundry tub seal. If you want detailed maintenance steps for either configuration, check how to clean your washer and dryer to adjust cycle temperatures and settings properly.

Can a drum cleaning tablet remove mold and residue from the rubber door seal?

Drum tablets clean the stainless steel basket, tub walls, and drainage lines, but they rarely reach deep inside the folds of a front loader door gasket. To eliminate stubborn dark stains and mildew sitting in the rubber boot, use a targeted mold stain remover gel directly on the seal or scrub the folds with specialized crevice cleaning brushes. Running a standard tablet clean cycle afterward flushes out the loosened debris and stops grime from clinging to clean clothing.

How often should you run a washing machine cleaner cycle?

Running an empty cleaning cycle once a month keeps detergent buildup, fabric softener scum, and stagnant water odors under control. Many cleaner packs are packaged specifically as a 12-month supply, offering either 12 time-release tablets or 24-count boxes designed for routine monthly deep cleaning. Maintaining this regular schedule prevents sour, musty smells from penetrating clean laundry loads and keeps internal tub surfaces clear of buildup.

Are washing machine descaler and cleaner tablets safe for septic systems?

Yes, formulas specifically labeled as septic-safe and eco-friendly break down mineral scale and residue without disrupting the bacterial balance in septic tanks. Many heavy-duty descaling tablets state septic tank compatibility directly on their packaging, making them safe for both municipal drainage lines and private septic systems. Always verify the septic-safe wording on the product label before running a cleaning cycle if your home relies on a septic tank.

Can washing machine cleaners eliminate trapped pet hair and dander from the tub?

Standard tablets target soap scum and odor, but specialized enzymatic washing machine cleaner tablets are formulated to dissolve pet fur, cat and dog hair, and urine residues. The active enzymes loosen clinging pet hair from the drum walls, tub seals, and water channels so it washes away during the rinse. Using an enzymatic formula on a consistent schedule prevents pet dander and fur clusters from redepositing on clean clothes or gathering around internal components.

Does washing machine cleaner reach internal parts like the pump, valve, and hoses?

Time-release cleaner tablets dissolve steadily across the entire cycle, allowing the active solution to reach deep inside the drain pump, internal valves, and hoses. As the washer agitates and expels water, the cleaning agents strip away hidden slime and odor-causing bacteria that manual wiping cannot reach. This deep rinsing action is just as valuable for front loaders as it is for top-loading washing machines with an agitator, where buildup often settles beneath the central post and inside lower pump cavities.

4
2 ratings
Stephen Vancleave
WRITTEN BY
Stephen Vancleave
Hey there! I'm Stephen, a guy who's crazy about all things home appliances. I've been writing, testing, and comparing these gadgets for 15 years from my base in San Francisco. I've got a degree in Industrial Design from Stanford, but my real education comes from hands-on experience.