If you mean a home laundry trick to make clothes look as white as milk, a common ingredient people use is baking soda.
Try this:
- Add ½ cup of baking soda to your washing machine along with your normal detergent.
- Wash as usual.
- For stubborn yellowing or dull whites, soak clothes first in warm water with baking soda for 1–2 hours (check the fabric label first).
Baking soda can help remove odors and loosen some dirt buildup, making whites look fresher. For true whitening of heavily stained fabrics, oxygen bleach (sodium percarbonate) is usually more effective and gentler than chlorine bleach. Avoid mixing bleach with other cleaners.
