Sunshine for whitening laundry
Line-drying whites flat in strong sun is a long-standing brightening habit.
Evidence: Home-publication trial; informalProfessional review not claimed
What the sources say
Apartment Therapy tried sun bleaching and describes hanging freshly washed whites flat in direct sun. This is an informal test, not a controlled study.
Evidence assessment: Home-publication trial; informal. This describes the scope of the guidance we checked, not proof that the remedy works for you.
Cautions
- Sun can fade coloured fabrics and weaken some fibres with long exposure.
How it is usually done
- Straight after washing, hang or lay whites as flat as possible in direct sun, pinned at the corners so the whole surface is exposed.
Ingredients & category
Sources
- Apartment Therapy: Does sun bleaching really work? — link and wording checked 30 September 2026
Source-checking is not clinical or veterinary review. Specific historical origin not established from the source reviewed.