My mum’s trick for cleaning a mop and making it like new: no more bad smells.

Your nose notices it before your eyes do.

From social media to the shared landings of block flats, the same question keeps cropping up: how do you keep a mop clean for more than a fortnight? With pricey products putting people off, the spotlight is back on a straightforward, low-cost method that works-built around simple routines you can repeat without effort.

A household staple that’s often overlooked

We expect a mop to soak up dust, kitchen grease and the fine spray that settles in bathrooms. It doesn’t take long before it becomes saturated. Damp fibres hold on to moisture, which encourages odours and microbial growth. That hidden cycle repeats every time you pass it over the floor-especially if you only rinse it in cold water. The outcome is predictable: you spread stale smells around rather than getting rid of them.

"Without proper care, a mop turns into an odour diffuser and a source of recontamination for floors."

The common habit that keeps bad smells alive

Plenty of people rinse the mop under lots of water, then hang the mop head above the bucket to drip dry. That combination is exactly what sustains unpleasant odours. Cold water doesn’t break down greasy films. And leaving it to drain vertically over a damp bucket creates a humid microclimate where mould thrives. What actually helps is a mix of heat, a mild acid, a gentle alkali, and proper drying.

Mop head cleaning method: 3 ingredients and 7 actions

Ingredients

• White spirit vinegar (8 to 10%): 1 cup, i.e. 200 to 250 ml.
• Food-grade bicarbonate of soda: 2 tablespoons, i.e. 25 to 30 g.
• Freshly squeezed lemon, or 6 to 8 drops of essential oil of your choice (lavender, eucalyptus, lemon).

Steps

1. Fill a bucket with very hot water (50 to 60°C) to open up the fibres.
2. Pour in the cup of white spirit vinegar to acidify and deodorise.
3. Add the bicarbonate slowly to keep the fizzing under control.
4. Add lemon or essential oil for its cleansing properties and fragrance.
5. Leave to soak for 15 to 20 minutes, stirring once halfway through.
6. Rinse thoroughly with clean water until all foam has disappeared.
7. Wring out firmly, then air-dry with the head facing down in a well-ventilated spot.

"Never mix vinegar or lemon with bleach: this combination releases dangerous gases."

Why this recipe genuinely sanitises

Vinegar brings the pH down to around 2.5, which disrupts many micro-organisms. Bicarbonate of soda, being alkaline, works as a fine abrasive and helps neutralise smelly compounds. When the two react, they release carbon dioxide: the bubbles physically lift particles trapped inside the fibres. Hot water loosens grease and speeds up diffusion through the fabric. Citrus and some essential oils add a mild antifungal effect, plus a scent that covers any lingering notes.

This combination remains gentle on cotton and microfibre while delivering a real “reset” in terms of smell. Once it’s fully dry, the mop regains strong absorbency and stops releasing odours on the first pass.

Frequency, drying and storage: habits that pay off

• For standard use (floors washed 1 to 2 times a week), plan a full soak every two weeks.
• If you have pets or do heavy-duty cooking, switch to a weekly soak.
• Rotate between two mop heads so each one can dry completely between cleans.
• Dry away from damp corners; even a light draught can halve drying time.
• Don’t shut it in a cupboard while the mop is still warm or damp.

Mistakes to avoid and special cases

• Only rinsing in cold water: grease remains and smells return quickly.
• Leaving it to soak overnight: the fibres tire and stretch.
• Using too much essential oil: higher risk of irritation and greasy marks on the floor.
• Mixing acidic products with chlorine-based products: immediate danger, always forbidden.
• Ignoring the bucket: clean the bucket and handle too, using the same short soak.

Quick comparison of maintenance options

Method	Odour effectiveness	Impact on fibres	Cost per cycle	When to use it
Vinegar + bicarbonate soak	High	Gentle	≈ 0,30 €	Regular maintenance
60°C machine wash with mild detergent	High	Medium (wear over time)	≈ 0,40 €	Monthly deep refresh
Oxygen bleach (solid hydrogen peroxide)	Very good	Good if dosing is controlled	≈ 0,45 €	Stubborn odours and stains
Very diluted bleach	Very high	Can weaken cotton	≈ 0,20 €	Occasional use, bathrooms

"Keep oxidising solutions for occasional situations; routine maintenance is enough to keep a mop hygienic."

Which mop type for which floors

Microfibre

Excellent capillary action; it picks up fine dust without product. It copes well with diluted vinegar. Avoid boiling water, as it can stiffen some weaves. Best on tiles and laminate.

Woven cotton

Very absorbent and hard-wearing, and it suits hot soaks. It can hold on to more odour if drying is incomplete. Works well on hard floors, terracotta and sheltered outdoor areas.

Delicate flooring

On oiled or waxed wood floors, dial back the acidity: half a cup of vinegar is enough, and wring thoroughly to minimise water left on the surface.

Cost, environmental impact and safety

A litre of spirit vinegar often costs between 0,60 and 1,00 €. One “cup” therefore comes to 0,12 to 0,25 €. Two tablespoons of bicarbonate cost roughly 0,05 to 0,10 €. A few drops of essential oil add 0,02 to 0,05 €. Altogether, a full cycle sits around 0,20 to 0,40 €, well below mop-specific additives sold for 3 to 8 € per month depending on use.

Environmentally, vinegar biodegrades easily and bicarbonate has low aquatic toxicity. Straining out fibres and pet hair before emptying the bucket into the sink helps prevent blocked pipes. Pouring away outside onto a draining surface also reduces the load on traps and U-bends.

A practical action plan for busy households

• Monday, week 1: a quick 15-minute soak after cleaning.
• Thursday, week 1: rinse with hot water and dry completely.
• Week 2: swap to the second mop head, keeping drying continuous.
• End of the month: a 60°C machine wash if odours still linger.

This schedule fits into a packed diary and cuts down on buying replacements. A simple hook near a window speeds up drying and lowers the risk of recontamination.

Going further: equipment hygiene and indoor air quality

The handle, bucket and grips also collect germs. A wipe-down with diluted vinegar after each session reduces hand-to-object transfer. Opening a window for ten minutes after washing floors helps remove moisture and prolongs fibre life.

If smells keep returning despite all this, replace the mop head every 6 to 12 months depending on use. Modern microfibre models lose effectiveness after 200 to 300 cycles. Marking the purchase date with a permanent marker makes it easier to decide when it’s time to swap it out.