Why clothes smell sour after washing
Short answer: Why does my laundry smell sour after washing? Most often because damp stays in the machine or in the fabric for too long, so bacteria and detergent residue get time to build a smell. Small changes in your wash routine usually fix it.
Why does laundry smell sour after washing
The sour smell usually comes from bacteria that thrive in damp and warmth, and they live both in the clothes and in the machine. If laundry sits wet, or if the machine never dries out, the smell has good conditions. It then sits in the fibres even if everything looks clean.
The laundry sits wet for too long
The most common cause is that the wash stays in the drum after the programme ends. When damp clothes lie pressed together for hours, they start to smell. Take them out straight away and shake them out before you hang them up, so air can reach the fabric.
Too much detergent and an overfull drum
More detergent does not mean cleaner clothes. Residue settles in the fabric and holds on to smell and damp. If the drum is packed full, the laundry is not rinsed properly either. A bamboo T-shirt for women and other everyday clothes do best when the water has room to move.
The machine can smell too
The rubber seal around the door and the detergent drawer collect damp and dirt, and then the whole machine smells. Wipe the seal dry after use and leave the door ajar so the drum can dry. Many people also run a cleaning programme or an empty hot wash now and then, if the machine manual allows it.
Low temperature and slow drying
Clothes washed cold do not always lose all traces of sweat and skin oil. That can cause a smell that comes back when the clothes warm up on your body. Wash by the label and choose the highest temperature the fabric tolerates when it is clearly dirty. Drying should be quick, not days in a closed room.
Sweat and body oils in the fabric
Some fabrics hold on to smell more than others, especially if a piece is worn several times between washes. Bamboo in clothing is viscose made from bamboo, and many find it easy to keep fresh, but the wash routine still decides the result. Sleepwear such as bamboo sleepwear for women can smell if it stays damp.
How to get the smell out of clothes that already smell
Wash the piece again without fabric softener and with a normal dose of detergent. Some people add a splash of white vinegar in the rinse compartment, but check the machine manual to see whether that is fine. If the smell stays, soak the clothes in cold water first and wash them afterwards.
Good habits that keep the smell away
Let clothes dry completely before you put them in the wardrobe, and air them after use if you do not wash every time. That also goes for special garments such as period underwear, where you follow the instructions on the product. Dose correctly and empty the machine at once.
Frequently asked questions
Why does my laundry smell sour even when I use a lot of detergent?
Detergent residue can bind damp and smell in the fibres. Use the amount on the pack, rinse well and wipe the drum dry so that no moisture stays in the machine.
Does washing at a higher temperature help?
Often yes, if the label allows it. Warmer water removes more sweat and oil residue, but always follow the care label so you do not damage the fabric or make it shrink.
How quickly should laundry come out of the machine?
As soon as possible, ideally within an hour or two. The longer clothes lie damp and pressed together, the greater the risk that they start to smell sour.
