If your towels repeatedly develop a sour smell even after washing, the problem may involve how long they remain damp and how they are dried, not just the wash temperature. A study published in 2026 found that washing kitchen towels with detergent at 60°C reduced the tested bacteria more effectively than washing at 40°C. However, these findings cannot automatically be applied to bath towels.
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Previously published article:
Topics already covered in the existing article:
Research findings comparing washing at 40°C and 60°C
Laundry care labels and restrictions on high-temperature washing
Drying and storing damp towels
Precautions when using fabric softener
Criteria for deciding when to replace towels
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