What you should know about clothes and hard water

Short answer: Hard water contains lime that binds to the detergent. That means more is needed for the same effect, and that the clothes can turn stiff.

Lime binds the detergent

Part of the soap is used binding the lime instead of washing. That is why hard water requires a higher dose. See washing and care.

The clothes turn stiff

Lime residue in the fibres makes the fabric stiff over time. It is felt most clearly in towels. See bamboo towels.

The dosage is on the pack

Detergents state the dosage by water hardness. Your local council or water utility can tell you what applies where you live.

No more soap than necessary

Overdosing creates its own problem. Follow the pack figures for your hardness. See bamboo underwear for men.

Fabric softener is not the answer

It makes the fabric soft to the touch but cancels the moisture transport. See bamboo underwear for women.

Frequently asked questions

What does hard water do to clothes?

Lime binds the detergent and can make the fabric stiff over time.

Should you use more detergent in hard water?

Yes, follow the dosage on the pack for your hardness.

Does fabric softener solve the problem?

No. It makes the fabric soft to the touch but cancels the moisture transport.