Drying silicone joints after every shower: the simple trick that stops mould

Most people regularly clean tiles, the toilet and the basin. Yet a small, easy-to-miss spot in the shower or bath is often what determines whether the whole bathroom stays hygienic or quietly turns into a germ hotspot. Experts call it a “classic everyday mistake” - and it can be avoided with just a few seconds of effort each day.

The overlooked risk area in the bathroom

The issue is the silicone joints around the shower, bath and washbasin. These flexible seals are designed to stop water getting behind tiles or into tiny gaps. But after every shower, moisture lingers there - often for many hours.

Moisture on its own would not be the main problem. However, mixed with soap residue, skin flakes and warm conditions, it becomes an ideal breeding ground for mould, bacteria and limescale deposits. If you simply leave the joints wet to air-dry after showering, you can unknowingly create a miniature habitat for microorganisms.

Wer Silikonfugen dauerhaft feucht lässt, riskiert Schimmel, muffigen Geruch und langfristig sogar gesundheitliche Beschwerden.

Why silicone joints are so prone to problems

Silicone may look smooth and watertight, but in reality it is slightly porous and soft. Tiny irregularities give microorganisms something to cling to. When water remains on the surface, they can multiply quickly.

What happens in joints that stay wet

• Mould growth: dark or greenish marks spread, often appearing first in corners.
• Limescale crusts: hard water leaves a grey or yellowish line that can be difficult to remove.
• Odours: organic residue and fungi create that familiar musty “old bathroom” smell.
• Material damage: the silicone becomes brittle, discolours and loses its sealing performance.

Anyone with sensitive airways - hay fever, asthma, or small children at home - often reacts more strongly to mould spores. The impact can range from irritated mucous membranes to ongoing breathing difficulties.

The simple trick: remove water immediately

This is exactly where bathroom and hygiene specialists’ advice comes in: water should be removed from silicone joints every day, straight after showering. Not in two hours, not “later when cleaning” - immediately, while droplets can still be wiped away easily.

How professionals handle daily upkeep

• Squeegee off water: use a simple shower squeegee or window wiper blade to quickly pull water off walls, glass and especially the joints.
• Dry the joints afterwards: run a small, dry cloth along the silicone lines, focusing on corners and the edge of the bath.
• Ventilate: open the window wide or switch on the extractor so remaining moisture can escape.

In most bathrooms, this routine takes less than a minute. You do not need special cleaning products - what matters is physically removing the water.

Ein paar Sekunden mit Abzieher und Tuch sparen später Stunden Schrubbarbeit und teure Renovierungen.

What regular drying actually changes

Many homeowners only notice the difference once they try it in everyday life: two to three weeks of deliberately drying after every shower.

Without daily drying	With daily drying
Joints discolour quickly	Stays looking white and clean for longer
Stubborn limescale and soap marks	Smoother surfaces, easier to clean
Mould traces in corners and edges	Significantly lower mould risk
More frequent use of harsh chemicals	Mild products are sufficient; fewer chemicals needed

Anyone who has had to replace mouldy silicone joints knows how time-consuming and expensive it can be. The sealant has to be removed completely, the surface cleaned, then resealed. Compared with that, the daily mini-routine feels almost absurdly simple.

Health: more than just appearances

Mould in the shower is not merely a cosmetic issue. Spores are carried into the airways with every draft. In healthy people, the body often responds with only mild irritation. For children, older people and allergy sufferers, the effects can be much more noticeable.

Possible consequences include, for example:

• persistent coughing or constant throat-clearing
• a blocked or runny nose without a cold
• headaches after spending longer in the bathroom
• worsening asthma symptoms

Keeping the bathroom consistently dry can noticeably reduce this burden. In particular, in small internal bathrooms with no window, every step that lowers moisture levels makes a difference.

How to build the new bathroom rhythm into daily life

The biggest obstacle is usually not the effort, but the habit. If you have spent years stepping out of the shower and leaving wet surfaces to dry on their own, it is easy to forget the extra step.

Practical everyday prompts

• Hang the squeegee inside the shower, clearly visible and within easy reach.
• Keep a small microfibre cloth just for the bathroom and wash it every few days.
• Get housemates or family involved - make it part of everyone’s “shower routine”.
• With children, explain it playfully so they can “hunt the water droplets”.

Many households report that after one to two weeks it becomes automatic. Once you see the change in the joints and notice the bathroom smells fresher, you are more likely to stick with it.

When a deeper clean is needed

If you can already see early discolouration or small mould spots, drying alone is no longer enough. In that situation, mild cleaners based on alcohol or vinegar can help, as can dedicated mould removers or home remedies such as a paste made from bicarbonate of soda and water. The affected areas should never be brushed while dry, so as few spores as possible are released into the air.

If mould keeps returning despite cleaning, the silicone joints may have reached the end of their lifespan, or there may be moisture sitting behind them. In that case, replacing the sealant is often unavoidable. Specialist tradespeople can usually tell at a glance whether a repair will do or a full replacement is the better option.

How indoor climate and behaviour work together

Daily joint care is most effective when paired with sensible moisture control. After each shower, steam should leave the bathroom as quickly as possible. A short burst of ventilation works better than leaving a window permanently on the latch. In internal bathrooms, it is worth checking the extractor’s performance: does it run long enough, and is it cleaned regularly?

If you also dry laundry in the bathroom, keep plants there, or leave wet towels hanging all the time, the moisture load rises sharply. In those cases, a hygrometer can help you keep an eye on humidity. Readings above 70 per cent for extended periods are considered critical.

Small habit, big impact on how long your bathroom lasts

Bathroom professionals see the same pattern time and again: where joints are dried daily, silicone and tiles stay presentable for much longer. The intervals between major refurbishments increase, and the need for aggressive cleaning products drops noticeably.

If you are renovating or building new, you can bake this tip into your routine from day one. In older bathrooms, it is worth starting at any time - even if the joints already show faint signs. Any reduction in moisture slows further deterioration and eases the burden on the health of the people living there.