First, you should put water in a large container, detergent for hand washing, and the juice of 2 lemons. The clothing what is desired whiten and leave it in the water for at least 30 minutes.
Then the clothing White and washes like the rest of the laundry. It can be machine washed using the program adapted to the type of fabric. Do not worry about the smell of lemon, because it will disappear with the washed and will not permeate the rest of the clothing.
Once the clothes are washed, they are laid out in a place sunny. You can hang your laundry on ropes in the garden, on the roof or on a terrace. The sun's rays make clothes whiter and end up eliminating the yellowish tone that is so loathed in white clothes.
We recommend laying the wash in the sun in the warmest hours of the day, because the sun's rays are more powerful. Likewise, the clothes must be allowed to dry for several hours so that the process of whitening be more effective. By obtaining a more intense white, energy is also saved because it is not necessary to use the dryer.
It is also worth knowing that contrary to these tips, you should never tend to clothing black to the sun. Black clothes fade, and then the original hue cannot be restored. In this way, the clothing dark in the shade to protect its color and prevent it from being damaged.