Why does laundry smell bad after washing?
Bad odour in freshly washed laundry is one of the most common complaints from self-service laundry users. It directly undermines the perceived quality of the service and can drive customers away for good. Root causes range from dosing errors to bacterial build-up inside the machines.
Common impacts
- Loss of customers dissatisfied with the result
- Damaged reputation in online reviews
- Users re-running the same wash
- Complaints and refund requests
Common causes
Detergent underdosing
When the detergent dose falls below the required level, neither soil nor the bacteria that cause bad odour are fully removed.
Water too cold
Very low temperatures (under 30 °C) may fail to activate the deodorising agents in the detergent.
Dirty washer or biofilm build-up
Residue, soap and moisture accumulate in the drum and seals, breeding bacteria that transfer odour onto fabrics.
Heavily soiled or sweat-saturated garments
Sportswear or workwear with ingrained sweat requires more intensive treatment than a standard cycle can deliver.
No use of complementary products
Skipping a hygieniser or oxygen bleach on problem loads leaves odour-causing bacteria intact.
Technical fixes
Use Biogold-Q with hygienising action
Enzymatic hygienising detergent that achieves a high level of hygiene in the washed laundry.
Add Oximatic Plus to the cycle
Peracetic acid bleach that revives colours and can be used on any fibre type.
Cleaning programme with Machine Clean
Periodic machine-cleaning cycle at about 60 °C that removes scale and odour-causing deposits.
Raise the temperature on problem cycles
For sportswear or sweat-heavy loads, cycles of at least 40 °C activate deodorising agents more effectively.
Use Blue Soft Plus with microcapsules
Thanks to its fragrance microcapsules, laundry keeps its scent for longer.
Recommended products
Preventive protocol
- Check actual dose volume with a measuring cylinder on the first Monday of every month
- Schedule a periodic automatic clean with Machine Clean
- Install signage reminding users to leave doors ajar after use
- Highlight the dedicated anti-odour programme with Biogold-Q for athletes and gym users
- Daily visual inspection of filters before opening
- Include Oximatic Plus as a permanent product in the dosing circuit
Persistent odour despite trying these fixes?
Our Technical Service can visit your site, diagnose the issue and draw up a tailored protocol.
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Shall we send you our detergent and softener price list?
Price per pack size for self-service laundries and recommended dosage. We reply within 24 working hours.