Potassium Permanganate:
Potassium permanganate, a strong oxidizing agent found in pharmacies, can help restore the whiteness of your laundry.
Dissolve a few crystals in 10 liters of water until it turns pink.
Soak your white fabrics in this solution and wrap the container with a nylon bag or clear cling film.
Allow it to sit for at least 4 to 5 hours or overnight. The water may change color, but there’s no need for concern.
The following day, spin your clothes or linens, then wash them as usual. You can repeat this process until you get the desired results.
Baking Soda:
This household staple is revered for its cleaning and deodorizing properties.
Dissolve 2-3 tablespoons of baking soda in water and soak your white items.
After soaking, wash them in the usual manner and let them air dry.