Baking soda, a popular and affordable cleaning agent, can permanently damage bathroom mirrors, shower doors, and other surfaces, according to an expert. Brian Toward, CEO of bathroom retailer Wholesale Domestic, warns that using baking soda in certain areas "might do more harm than good."
Why baking soda can cause damage
Baking soda, also known as bicarbonate of soda, is a multipurpose cleaning product found in many households. Its grainy consistency is mildly abrasive, which can create permanent micro-scratches on glass surfaces. These tiny scratches can diminish the reflective quality of mirrors and cause glass to look cloudy, hazy, or perpetually dirty.
Brian explained: "You should never clean glass with baking soda, so stay clear of cleaning mirrors, shower doors and windows with it." He added: "As it's an abrasive cleaner, it can scratch the glass and also leave a film or residue if not rinsed thoroughly, making it look cloudy and streaky. Instead, mix together white vinegar and water in a spray bottle, apply it to the glass and wipe it away with a microfiber cloth."
Surfaces to avoid and safer alternatives
Brian also cautions against using baking soda on grout, natural stone, and acrylic bathtubs. He said: "While baking soda can be good for cleaning tile surfaces, it's not the best option for cleaning grout as it can cause damage and wear down the grout over time. Use a mixture of hydrogen peroxide and water or vinegar and water. Apply the solution, let it sit for a few minutes, and then scrub it with a grout brush."
For natural stone surfaces like marble and granite, baking soda's abrasive nature can scratch and dull the finish. Brian advises using a gentle pH-neutral cleaner specifically formulated for natural stone, or a mixture of mild dish soap with water. On acrylic bathtubs, he warned: "Doing so can scratch the surface, leaving them visibly damaged. Instead, again use a mild liquid soap or dish detergent mixed with warm water. Also avoid harsh, abrasive scrubbers that can cause scratching."
Brian concluded with a tip for those unsure about using baking soda: "If you're unsure if there are parts of the bathroom you can clean with baking soda, test it in a small area before applying it to the entire surface to prevent damage."
