Sour towel smell is a sharp, acidic odour - distinct from the earthy "musty" smell. It often indicates bacterial contamination or residue buildup.
Causes
Bacteria: Different bacteria produce different odours. Some create sour rather than musty smells.
Residue: Detergent or fabric softener buildup reacting with body oils.
Left wet: Towels sitting damp in machine or basket.
Incomplete rinsing: Soap residue turning rancid.
Sour vs Musty
| Sour | Musty |
|---|---|
| Sharp, acidic | Earthy, stale |
| Often bacterial | Often mould |
| May be residue-related | Usually dampness |
Solutions
Similar to musty:
- Hot wash with detergent
- Vinegar in rinse
- Complete drying
- Laundry stripping if persistent
Extra rinse cycle may help if residue is the cause.
Prevention
- Don't leave wet towels sitting
- Adequate detergent (not too much or too little)
- Complete rinsing
- Proper drying