How to Whiten Curtains: 7 Effective Tips
To whiten curtains, use baking soda or white vinegar as a pre-treatment, then wash at 30-40°C with a suitable detergent. These natural methods restore brightness without damaging the fibres.
- Baking soda and white vinegar are the most effective and eco-friendly allies.
- Avoid bleach on polyester or delicate cotton curtains.
- A cold pre-soak with sodium percarbonate is ideal for stubborn stains.
- Always air-dry in the shade to prevent yellowing.
Why Have My Curtains Turned Yellow or Grey?
White curtains yellow due to tobacco, sunlight, or detergent residue. Greyness is caused by dust and pollution. Before whitening, identify the cause: sun-induced yellowing requires a gentle treatment, while smoke calls for a vinegar soak.
What Product to Whiten Curtains?
The best products are natural: baking soda (1 tablespoon per litre of water), white vinegar (1 cup in the fabric softener compartment), or sodium percarbonate (2 tablespoons in the drum). For yellow stains, baking powder (1 sachet in warm water) is an effective grandmother's trick.
How to Whiten Curtains in the Washing Machine?
- Shake the curtains to remove dust.
- Place them in a laundry bag to protect the fibres.
- Add 2 tablespoons of baking soda to the drum.
- Wash at 30°C (40°C max for cotton) with a mild detergent.
- Add a cup of white vinegar to the fabric softener compartment.
- Select a delicate cycle and moderate spin (600 rpm).
Tip for Polyester Curtains
Polyester does not tolerate heat or bleach well. Opt for a 30°C wash with white vinegar. For deep whitening, soak for 30 minutes in cold water with sodium percarbonate.
How to Whiten Curtains Yellowed by Tobacco?
For smoke-soaked curtains, prepare a bath of warm water with 1 cup of white vinegar and 2 tablespoons of baking soda. Soak for 2 hours, then machine wash. Repeat if necessary.
How to Whiten Grey Curtains (Dust)?
For grey curtains, a soak in cold water with sodium percarbonate (2 tablespoons per litre) for 1 hour suffices. Then machine wash on a delicate cycle. Avoid hot water, which sets stains.
Mistakes to Avoid
- Do not use bleach on synthetic curtains: it yellows and weakens them.
- Do not dry in direct sunlight: UV rays yellow the fibres.
- Do not overload the machine: curtains need room to move freely.
- Do not iron at high heat: use steam at low temperature.
When Should You Replace Your Curtains?
If after several whitening attempts the curtains remain grey or yellow, or if the fibres are damaged (holes, fraying), it is time to buy new ones. Our linen or organic cotton curtains resist whitening better.
These tips will help keep your curtains bright. Discover our collection of white curtains and home linens for a luminous interior.
