Best Washing Machine Cleaner Tablets UK 2026

Quick Answer

The best washing machine cleaner tablets use sodium percarbonate plus enzymes to break down detergent residue, hair, and biofilm, with citric acid to tackle limescale. For UK households, choose a formula matched to your issue: enzyme tablets for pet hair and odour, descaling tablets for hard water areas. One tablet per empty hot cycle, twice a month.

Further reading: Which? — washing machine cleaners compared · Which? — how to clean a smelly washing machine

Quick Answer: Best Washing Machine Cleaner Tablets UK

The best washing machine cleaner tablets for most UK households in 2026 are enzyme-based formulas that clean more than just the drum surface — they target the residue, pet hair, limescale, and odour-causing bacteria that accumulate in the seal, drain, and heating element. For pet owners, choose a formula with higher enzyme concentrations. For hard water areas, choose one with citric acid or a dedicated descaling compound.

What to Look for in Washing Machine Cleaner Tablets

Not all washing machine cleaners are equal. Here is what differentiates an effective product from a generic one:

• Enzyme formula: Enzymes break down specific types of residue — proteins (pet hair, skin cells), fats (oils, fabric softener), and starches (detergent residue). Generic cleaners use oxygen bleach or citric acid alone and miss these residue types.
• Descaling agent: Citric acid or sodium carbonate is needed to dissolve limescale in hard water areas. Essential if you live in London, the South East, East Anglia or the East Midlands.
• Odour treatment: Tea polyphenols or oxygen-releasing agents neutralise odour-causing bacteria at source — not just mask the smell.
• Tablet format: Tablets are pre-measured and easy to use. Liquid cleaners work similarly but require measuring and are more wasteful over time.

Best Washing Machine Cleaner Tablets: Our Recommendations

Best for Pet Owners: viblii Pet Formula

Designed specifically for pet-owning households, viblii Pet Formula uses a triple-enzyme system — protease (breaks down pet hair proteins), lipase (dissolves pet oils), and amylase (clears detergent residue) — alongside tea polyphenols for odour neutralisation. It is the only UK washing machine cleaner tablet specifically formulated for the residue that pets leave behind.

• 24 tablets per box (12-month supply at twice monthly use)
• Compatible with all front loaders, top loaders, and HE machines
• No bleach, septic-safe
• Free tracked UK delivery

Best for Hard Water Areas: viblii Hard Water Formula

viblii Hard Water Formula combines enzyme cleaning with citric acid descaling and sodium polyacrylate — an anti-redeposition agent that prevents dissolved limescale from resettling on internal surfaces after the cleaning cycle. It also includes sodium silicate to protect metal components during the descaling process.

• Specifically formulated for UK hard water areas (London, South East, East Anglia, East Midlands)
• 24 tablets per box (12-month supply)
• Compatible with all machine types
• Free tracked UK delivery

Best General Option: Dr Beckmann Service-It Deep Clean

Dr Beckmann is a widely available UK brand with a straightforward deep clean formula. It uses oxygen bleach and a deodorising agent. It does not contain enzymes, making it less effective than viblii for pet-specific residue, but it is a competent general cleaner for households without pets or hard water issues. Available in most UK supermarkets.

Best Budget Option: Dettol Washing Machine Cleaner

Dettol's washing machine cleaner uses an antibacterial formula focused on bacteria and mould elimination. At a lower price point, it works for basic maintenance. It does not descale or contain enzymes, limiting its effectiveness for limescale or pet residue. Suitable for soft water areas or as a between-cleans product.

Avoid: Vamoosh Pet Hair Dissolver

Vamoosh claims to dissolve pet hair. The active ingredient is sodium percarbonate (oxygen bleach), which oxidises hair rather than breaking it down enzymatically. Customer reviews are mixed, with some reporting that the product can cause hair to clump and adhere more strongly in certain conditions. It does not address limescale, odour, or general residue buildup.

Comparison Table

How to Use Washing Machine Cleaner Tablets Correctly

1. Place the tablet directly in the empty drum — not the detergent drawer.
2. Do not add laundry, detergent, or fabric softener.
3. Run the hottest available cycle — 60°C minimum, 90°C or drum clean setting for best results.
4. Once complete, wipe the door seal with a damp cloth to remove any loosened residue.
5. Leave the door ajar to allow moisture to evaporate.

Use twice a month for most households, or every two to three weeks for pet owners and hard water areas.

Related Reading

FAQs

Are washing machine cleaner tablets safe for septic tanks?

Enzyme-based cleaners are generally septic-safe because they use biological agents rather than harsh chemicals. Always check the product label for confirmation. viblii tablets are confirmed septic-safe.

Do washing machine cleaner tablets work in all machines?

Yes. Tablets placed in the drum are compatible with front loaders, top loaders, and HE (high-efficiency) machines from all major brands including Samsung, Bosch, LG, Hotpoint, Beko, and AEG.

How long does one box of tablets last?

A 24-tablet box lasts 12 months when used twice monthly. For households needing more frequent cleaning (pet owners, hard water areas), a box lasts 6 months at weekly use.

Can I use washing machine cleaner tablets on every wash?

No. These are maintenance products, not a regular washing additive. Use them in dedicated empty hot cycles, not with laundry loads.

Can I use washing machine cleaner tablets instead of descaler?

Only if the formula specifically contains citric acid or another descaling agent. Standard enzyme cleaner tablets target biofilm, detergent residue and pet hair — they do little against limescale. In hard water areas, either choose a dual-action tablet or alternate an enzyme clean one month and a descaling clean the next.

What's the difference between tablets and liquid washing machine cleaners?

Tablets deliver a measured dose directly into the drum and dissolve slowly over a hot cycle. Liquids spread faster but need correct dosing by volume. For most UK households tablets are simpler and the cleaning result is the same — the active ingredients (sodium percarbonate, enzymes, citric acid) are the same either way.