Refresh Your Appliance with Bicarbonate of Soda
Using bicarbonate of soda to clean your washing machine is an effective, budget-friendly method to tackle common issues like unpleasant odours and detergent residue build-up. This simple ingredient works by absorbing smells and gently abrading grime without damaging internal components. By following a straightforward process, you can restore your appliance’s performance and ensure your laundry comes out smelling fresh.
- Bicarbonate of soda neutralises odours.
- It helps to break down detergent residue.
- Regular cleaning prevents deeper build-up.
- This method is gentle on machine parts.
A washing machine, like any appliance that handles water and detergents, can become a breeding ground for bacteria and mould over time, especially if not regularly maintained. This is often the cause of a 'whiffy' drum or clothes that emerge from the wash cycle not quite smelling fresh. Before resorting to commercial washing machine cleaners, consider the humble yet potent bicarbonate of soda. Its natural alkaline properties make it adept at cutting through grease and grime, while its fine grain structure offers a mild abrasive action.
This approach is particularly useful for addressing the persistent smell that can emanate from the rubber seal around the door or the detergent drawer, common culprits for trapping moisture and residue. By incorporating bicarbonate of soda into your cleaning routine, you’re not just masking smells; you’re actively working to remove the sources.
Why Bicarbonate of Soda?
The primary benefit of bicarbonate of soda, often known as baking soda in other regions, lies in its chemical composition. It's a mild alkali, meaning it can neutralise acidic odours. Many unpleasant smells in a washing machine are slightly acidic, so bicarbonate of soda effectively cancels them out rather than just covering them up. Furthermore, it’s a natural deodoriser and a gentle scouring agent. This means it can help lift away detergent scum and mineral deposits that accumulate on the drum, door seals, and internal pipes without scratching surfaces.
Compared to harsher chemicals, bicarbonate of soda is non-toxic and safe to use around pets and children once rinsed away. Its affordability also makes it an attractive option for routine maintenance. Many commercial washing machine cleaner products contain potent chemicals that, while effective, can be expensive and may require specific handling precautions. Bicarbonate of soda offers a more accessible and environmentally considerate alternative for most common cleaning needs.
The most significant advantage is its dual action: deodorising and mild cleaning.
The Process: Cleaning Your Washing Machine Drum
Addressing a smelly or grimy washing machine drum is straightforward using bicarbonate of soda. This method involves two main applications: one directly into the drum and another into the detergent dispenser, followed by a hot wash cycle. This ensures the entire system gets a thorough clean, from the point of entry for your laundry to the internal plumbing.
For a standard wash load capacity (around 5-7kg), you will typically need approximately 1 cup (around 200-250 grams) of bicarbonate of soda for this process. Ensure you are using plain bicarbonate of soda, not baking powder, which contains other leavening agents and acids not suitable for cleaning.
Step-by-Step Cleaning Guide
Follow these instructions precisely to achieve the best results and ensure you are using the bicarbonate of soda correctly to clean your washing machine.
- Prepare the Machine: Ensure the washing machine is empty. Remove any loose debris from the drum or rubber seal if visible.
- Add Bicarbonate of Soda to Drum: Pour about half a cup (approximately 100-125 grams) of bicarbonate of soda directly into the empty washing machine drum. Distribute it evenly.
- Add Bicarbonate of Soda to Dispenser: Open the detergent drawer. Pour the remaining half cup (approximately 100-125 grams) of bicarbonate of soda into the main washing compartment, where you would usually put liquid or powder detergent. If your machine has a separate compartment for pre-wash, you can add a little there too if you wish, but the main compartment is key.
- Select a Hot Wash Cycle: Close the detergent drawer and the machine door. Set the washing machine to its hottest possible wash cycle. A temperature of 60°C (140°F) or higher is ideal, as heat helps to dissolve residue and kill bacteria more effectively. A long cycle will also allow more time for the bicarbonate of soda to work.
- Run the Cycle: Start the wash cycle. Allow the machine to complete the full programme.
- Optional Second Rinse: Once the cycle is finished, you may choose to run an additional rinse cycle. This helps ensure all bicarbonate of soda residue has been flushed out of the machine, particularly if you are sensitive to any residual scent or if you have very hard water.
This hot wash cycle will help the bicarbonate of soda dissolve and circulate throughout the machine, cleaning the drum, pipes, and any components it contacts. The gentle abrasive action aids in dislodging any dried-on residue, while its deodorising properties work to neutralise lingering smells.
Inspect the detergent drawer after the hot wash and manually scrub any stubborn residue with a toothbrush and a paste of bicarbonate of soda and water before reassembling.
The effectiveness hinges on the high-temperature wash cycle.
Tackling Stubborn Smells and Residue
If your washing machine continues to emit unpleasant odours, or if you notice visible grime and residue despite the basic cleaning cycle, it might require a more targeted approach. This often points to build-up in areas not fully reached by the standard drum wash, such as the washing machine seal or filter.
The rubber seal around the door is a prime spot for mould and mildew to grow, trapped moisture providing the perfect environment. Similarly, the washing machine filter can accumulate lint, hair, and other debris, becoming a source of odour and potentially impeding drainage. Addressing these specific areas, often in conjunction with the bicarbonate of soda method, will provide a more comprehensive clean.
Cleaning the Washing Machine Seal
For the door seal, a paste made from bicarbonate of soda and water is highly effective. Mix approximately 2-3 tablespoons of bicarbonate of soda with just enough water to form a thick paste. Apply this paste directly to the affected areas of the rubber seal, working it into any folds or crevices.
Allow the paste to sit for at least 15-20 minutes. Then, using a damp cloth or a soft sponge, gently wipe away the paste and any loosened grime. For stubborn spots, a soft-bristled brush (like an old toothbrush) can be used to scrub gently before wiping. After cleaning, dry the seal thoroughly with a clean cloth to prevent immediate re-establishment of damp conditions.
This process is crucial for preventing mould spores from spreading and is a key step in understanding why does my washing machine smell. Neglecting the seal can lead to persistent odours that even a hot wash cycle might not fully eliminate.
Addressing the Washing Machine Filter
The washing machine filter, often located at the bottom front of the appliance behind a small flap, needs regular attention. Consult your washing machine’s manual if you are unsure of its location or how to access it safely. Be prepared for some residual water to drain out when you open the filter, so have a shallow tray or old towels ready.
First, unscrew or unclip the filter. Remove any visible lint, hair, or debris. You can then rinse the filter under warm running water. For any caked-on residue, you can use the bicarbonate of soda paste mentioned earlier to gently scrub the filter clean before rinsing it thoroughly. Once clean and dry, carefully screw or clip the filter back into place.
Regularly cleaning the washing machine filter is a vital part of maintenance that extends beyond just odour control; it helps ensure the machine drains efficiently and prevents potential blockages. If you’re not sure how often to clean it, checking your manual is recommended, but monthly is a good general guideline for many households.
Checking the washing machine filter is a non-negotiable step for preventing deeper issues.
For deep cleaning of the detergent drawer, remove it entirely if possible and soak it in a warm water and bicarbonate of soda solution for an hour before scrubbing.
Maintenance and Prevention Tips
Preventing the build-up of odours and residue in your washing machine is far more straightforward than dealing with a thoroughly soiled appliance. By adopting a few simple habits, you can significantly extend the life of your machine and ensure consistently fresh laundry. These practices focus on managing moisture, optimising detergent use, and performing light, regular cleaning.
The most effective preventative measure is to create an environment less conducive to mould and bacterial growth. This primarily involves managing moisture and ensuring adequate airflow. Regular cleaning is not just about fixing problems; it's about making sure the appliance functions optimally for longer.
Keep the Door and Drawer Open
After each wash cycle, it is crucial to leave the washing machine door slightly ajar. This allows air to circulate within the drum, helping to dry it out and significantly reducing the damp conditions that encourage mould and mildew growth. Similarly, leave the detergent drawer slightly open.
This simple step helps to prevent that characteristic stale smell from developing. If your machine is in a utility room or bathroom, ensure there is some ventilation. For machines kept in cupboards, try to leave the cupboard door open when not in use to allow air to circulate around the entire appliance.
Use the Right Amount of Detergent
Overdosing on detergent is a common mistake. Modern washing machines, especially front-loaders, are designed to use less detergent than older models. Using too much can lead to excessive suds, which don't rinse away properly, leaving a sticky residue that traps dirt and becomes a breeding ground for bacteria. Always follow the manufacturer's recommendations for detergent dosage, adjusting only slightly for very heavy loads or exceptionally hard water if necessary. Using a high-efficiency (HE) detergent in an HE machine is also vital.
Consider using a washing machine cleaner, like Calgon or Dettol washing machine cleaner, periodically, especially if you have hard water. While bicarbonate of soda is excellent for regular upkeep and deodorising, dedicated cleaners can sometimes tackle heavier limescale or soap scum build-up more aggressively. Dr. Beckmann washing machine cleaner is another popular option designed to tackle specific issues. The best washing machine cleaner for you depends on your water hardness and typical detergent use.
Run Hot Cycles Periodically
Just as we used a hot cycle to clean with bicarbonate of soda, running a hot wash (60°C or higher) on your machine at least once a month, even without a specific cleaner, can help flush out accumulated residues and kill bacteria. This is especially important if you primarily use low-temperature washes, which are energy-efficient but can contribute to build-up over time. A programme like 'cotton' at a high temperature is usually sufficient.
Consistent, small efforts in maintenance are more effective than infrequent, deep cleans.
Troubleshooting Common Washing Machine Smells
Even with regular cleaning, you might encounter persistent smells or issues with your washing machine. Understanding the potential causes can help you pinpoint the problem and apply the correct solution, often involving bicarbonate of soda or other maintenance steps. The goal is to identify the root cause rather than just treating the symptom.
A 'sour milk' smell is often due to detergent residue mixed with water, particularly common in front-loaders where water can pool. A 'musty' or 'mildew' smell is almost always linked to mould and dampness, primarily around the door seal and in the detergent drawer. A 'sewage' or 'rotten egg' smell can indicate a problem with the drain filter or plumbing, where trapped waste is decomposing.
When Bicarbonate of Soda Isn't Enough
While bicarbonate of soda is a fantastic all-rounder for general cleaning and deodorising, certain issues might require additional or alternative treatments. For significant limescale build-up, which can trap grime and reduce efficiency, a dedicated limescale remover or a commercial washing machine cleaner formulated for this purpose might be necessary. If you frequently use fabric softener, this can contribute to a greasy residue that bicarbonate of soda alone may struggle to break down completely. In such cases, a cleaner designed to cut through soap scum and grease would be more effective.
If you've tried cleaning the drum, seal, and filter, and the smell persists, consider the internal workings. Blockages in the drain hose or pump can cause water to sit, leading to odours. You might need to check and clean these parts, again referring to your machine's manual for specific instructions. If the smell is consistently strong after every wash, it could also point to a more significant mechanical issue or a build-up deep within the heating element or pipes that requires professional attention.
For a general refresh, remember that the best washing machine cleaner can be a combination of methods. Using bicarbonate of soda for regular deodorising and cleaning, alongside periodic hot washes and occasional use of a commercial cleaner like Dettol or Dr. Beckmann washing machine cleaner, provides robust maintenance.
Always consult your appliance manual before attempting any internal cleaning or disassembly.