Homeowners across the UK are discovering a remarkably simple and cost-effective solution to a persistent household problem: bathroom mould. A viral cleaning tip is gaining traction for its ability to repel unsightly black mould spots without expensive products or harsh chemicals.
The Simple Solution Hiding in Your Cupboard
The secret weapon against mould growth is surprisingly ordinary: washing up liquid. Experts confirm that a small amount of this everyday household item can create a protective barrier that stops mould spores from taking hold on bathroom surfaces.
This method works because washing up liquid contains surfactants that break down water surface tension. When applied to tiles, grouting, and shower screens, it prevents moisture from beading up and creating the damp environment mould thrives in. The solution effectively makes surfaces less hospitable to fungal growth.
How to Implement This Mould-Prevention Strategy
Applying this protective treatment requires minimal effort and equipment. You'll need only washing up liquid, warm water, a spray bottle, and a cloth or sponge.
The process is straightforward: Mix a small squirt of washing up liquid with warm water in a spray bottle. Lightly mist the solution onto clean, dry bathroom surfaces including tiles, shower screens, and around the bath. Gently wipe it over the surfaces, then allow it to dry naturally without rinsing.
This leaves an invisible protective layer that repels water and discourages mould establishment. For optimal results, the treatment should be reapplied every few weeks, particularly in bathrooms that see heavy use or have poor ventilation.
Why This Method Outperforms Conventional Approaches
Traditional mould removal often involves harsh bleach-based products that only address existing mould without preventing its return. The washing up liquid method focuses on prevention rather than cure, tackling the problem at its source by altering the surface conditions mould requires to grow.
This approach is particularly valuable during colder months when increased condensation creates ideal mould-growing conditions. With heating costs rising, many households are reducing ventilation to conserve heat, inadvertently creating perfect environments for mould development.
Beyond being cost-effective—costing just pennies per application—this method is also safer for households with children, pets, or individuals with respiratory sensitivities, as it avoids strong chemical fumes associated with conventional mould treatments.
While this hack significantly reduces mould development, it works best alongside good bathroom practices like using extractor fans, wiping down wet surfaces after use, and ensuring adequate ventilation. For severe existing mould problems, professional remediation may still be necessary, but this method offers excellent ongoing protection.
