Washing machines work hard to keep clothes clean, but they can develop unpleasant smells over time. According to Neil Mckenzie, home safety expert at Halton Stairlifts, the problem often stems from three common causes: residual moisture, detergent build-up, and low-temperature washing. The good news, he says, is that a simple monthly routine using two kitchen cupboard staples — bicarbonate of soda and white vinegar — can help banish odours and break down residue.
Why Washing Machines Smell
Mckenzie explains that when the washing machine door is closed immediately after a cycle, water lingers in the drum and rubber seal, creating a damp environment where mould and mildew can take hold. He advises leaving the door open after a wash to allow the machine to air out.
Detergent build-up is another culprit. Many households use more detergent than necessary, and the excess doesn't fully rinse away. It accumulates in the drum, drawer, and internal pipes, eventually producing a musty smell. Mckenzie recommends using the correct amount of detergent and running an occasional cleaning cycle to remove residue.
Low-temperature washing, increasingly common as households try to cut energy bills, is the third cause. While 30 or 40 degree cycles are fine for clothes, they don't get hot enough to kill bacteria and residue left behind from regular laundry loads. Over time, this creates a layer of biological build-up that fabric softener can't mask. Mckenzie notes that the machine itself needs heat to stay clean.
The Monthly Cleaning Routine
Mckenzie's recommended routine starts with running the machine on its hottest cycle — at least 60 degrees — with the drum empty. Add a washing machine cleaning tablet or two tablespoons of bicarbonate of soda directly into the drum, and pour a cup of white vinegar into the detergent drawer. Let the full cycle run.
After the cycle finishes, wipe down the rubber door seal with a damp cloth, paying attention to the folds where moisture and lint collect. Leave the door open for at least an hour afterwards.
The detergent drawer, often overlooked, should be removed and rinsed under a tap monthly, as built-up conditioner and detergent can harbour mould. If the machine is prone to holding water, Mckenzie suggests manually draining it via the filter at the bottom, after unplugging and placing a towel or tray underneath. Keeping the door and drawer slightly open between washes also helps moisture escape.
Growing Interest in Cleaning Solutions
Interest in washing machine maintenance appears to be on the rise. Google searches for 'best washing machine cleaner' have increased by 86% in the last three months, according to RSVP Live. While the exact reasons for the spike aren't detailed, the trend underscores a growing awareness of the need to clean the appliance itself.
Practical Tips for Homeowners
The advice from Mckenzie offers a straightforward approach for tackling odours without resorting to harsh chemicals. By addressing the three main causes — moisture, detergent residue, and low-temperature washing — and following a monthly cleaning routine, homeowners can keep their machines fresh and extend their lifespan.
As with any appliance maintenance, it's always a good idea to consult the manufacturer's instructions before attempting any cleaning or draining procedures.