If you've noticed black mould spreading across your bathroom grout, this natural method could help tackle it in just 10 minutes with minimal effort. That familiar dark stain creeping across your bathroom grouting isn't just unsightly; it's a health hazard that needs immediate attention. Mould is among the most common household problems in the UK, and if you've spotted it, you're certainly not alone.
Why Mould Thrives in Bathrooms
Mould spores are constantly present in the air around us, but they only become troublesome when they find perfect conditions to settle and multiply. Bathrooms offer exactly that: high temperatures, significant humidity, and surfaces that stay damp for extended periods. Areas like sealant, tile grouting, and shower-curtain folds are particularly susceptible, as moisture lingers there long after you've dried off and left the room. The good news is that with the right cleaning approach, it's entirely manageable.
The Power of Baking Soda
According to cleaning experts, bicarbonate of soda is considered one of the best natural ways to remove mould stains on grouting. From neutralising smells in the fridge to lifting stains, bicarbonate of soda has countless uses around the home, including tackling black mould. The experts at The Maids said: "It's safe for your family and pets, is a natural mould killer, and absorbs moisture that attracts mould."
Bicarbonate of soda provides a mild abrasive that physically lifts grime without harming the tiles. It's alkaline, so unlike white vinegar, which is acidic, it won't break down the grouting material. Cleaning experts at Merry Maids also recommend using baking soda for the job. They stressed that baking soda works brilliantly, as it can be used on "most areas", though it's sensible to do a small patch test first.
How to Remove Mould from Grout Using Baking Soda
Start by mixing a teaspoon of baking soda in a spray bottle filled with water, shaking well until completely dissolved. Spray the affected area with the baking soda mixture and leave it to work for around 10 minutes. Alternatively, baking soda can be made into a paste and applied straight onto the surface, leaving it for the same amount of time. To do this, mix half a cup of baking soda with two to three teaspoons of water, adjusting the texture until it's easy to spread.
Gently scrub the area with a soft-bristled brush, and the mould stains should come away easily. Then, rinse the surface well with water to remove any leftover residue and baking soda. To complete the process, spray the area one final time and let it air dry without wiping. This will "kill any leftover mould and help prevent the mould from returning", according to the cleaning specialists at The Maids.
