White vinegar is a natural and effective solution for removing mould from shower silicone sealant, according to handyman Terry Alexander, founder of The Plumbero. The acidic properties of white vinegar dissolve mould spores without the need for harsh chemicals.
Mould thrives in moisture-rich environments like bathrooms, and silicone sealant is particularly vulnerable because it is porous. Spores can penetrate deeply into the material, making regular cleaning essential. While bleach can eliminate surface mould, it cannot reach spores lodged deep within the silicone, making it unsuitable for shower seals.
How White Vinegar Works
White vinegar contains acetic acid, which breaks down mould spores effectively. It is a mild substance that does not damage or discolour silicone sealant, yet it can penetrate the material to eliminate all spores. This natural method avoids the use of harsh chemicals, making it safer for both users and the environment.
Step-by-Step Cleaning Process
To clean mould off shower sealant, apply a generous amount of white vinegar to the affected areas. Leave it undisturbed for at least one hour to allow the acid to destroy the spores. For best results, consider leaving it overnight, as natural cleaning methods typically take longer than chemical alternatives.
White vinegar has a strong odour that can become overwhelming in a bathroom. Ensure the room is well-ventilated by opening a window while using it.
After the allotted time, use a bristled brush or an old toothbrush to scrub away the loosened mould. It should lift away easily. Rinse the silicone seal with warm water and dry it completely with a clean cloth to help prevent future mould growth.
Preventative Measures
Regular cleaning with white vinegar can prevent mould buildup. For a more powerful mixture that provides longer-lasting cleanliness, combine white vinegar with baking soda and tea tree oil. This combination enhances the cleaning power and helps keep the sealant mould-free for extended periods.
By using this natural method, you can effectively remove mould from shower silicone without resorting to harsh chemicals, ensuring a clean and healthy bathroom environment.



