How to Prevent Mould in Your Washing Machine
Mould in a washing machine is a common problem, particularly in front loaders. It causes musty-smelling clothes and can be difficult to get rid of once established. The good news: prevention is simple and takes only a few minutes of regular care.
Why Mould Grows in Washing Machines
Mould thrives in warm, damp, dark environments — which is exactly what a closed washing machine drum becomes. Front loaders are particularly susceptible because:
- The rubber door seal (gasket) traps water and detergent residue
- The door is airtight when closed, preventing the drum from drying out
- Low-temperature washes don't kill mould spores
- Liquid detergents and fabric softeners leave residue that feeds mould
Prevention Tips for Front Loaders
1. Leave the Door Open After Every Wash
This is the single most effective thing you can do. After removing your laundry, leave the door slightly ajar to allow the drum and door seal to air out. Even 15–30 minutes of airflow makes a significant difference.
2. Wipe the Door Seal After Every Wash
Use a dry cloth to wipe around the rubber door seal, paying particular attention to the bottom where water pools. Any moisture left here is where mould starts.
3. Use Less Detergent
Most people use too much detergent. Excess detergent leaves residue in the drum and seal that feeds mould. Use the recommended amount or even slightly less — modern machines are very effective with smaller quantities.
4. Run a Hot Wash Regularly
Run an empty hot wash (60°C or higher) once a month. Add a cup of white vinegar or a washing machine cleaner tablet. The heat kills mould spores and the cleaner removes residue.
5. Use Powdered Detergent Instead of Liquid
Powder detergents leave less residue than liquid detergents and fabric softeners. If you're prone to mould issues, switching to powder can help significantly.
6. Clean the Detergent Drawer
Remove the detergent drawer monthly and rinse it under warm water. Use a brush to scrub any residue. This prevents mould from forming there and spreading to your wash.
Prevention Tips for Top Loaders
Top loaders are less prone to mould but it can still occur. Leave the lid open after washing to allow the drum to air out. Run a hot cleaning cycle monthly with washing machine cleaner or vinegar.
How to Remove Existing Mould
If mould is already present on the door seal, mix equal parts white vinegar and water in a spray bottle. Spray the seal, let it sit for 30 minutes, then scrub with an old toothbrush. For stubborn mould, use a diluted bleach solution (1 tablespoon bleach in 1 litre of water) wearing rubber gloves.
When to Replace Your Washing Machine
If mould has deeply penetrated the drum or the machine has persistent mould odour despite cleaning, it may be time for a replacement. We carry quality washing machines with free delivery across Sydney.
Showroom: 2/14 Centre Place, Wetherill Park — open 7 days, 10am to 8pm
Phone: 0493 142 999