How to make laundry whiter?

How to clean inside of washing machine?

Before washing your clothes, separate them according to their colors. White clothes must only be washed with white ones and must not be washed with colored ones. Use powder or liquid detergents prepared with a formula that is especially developed for white clothes. Wash them in at least 400C – 600C by choosing suitable program on washing machine. After your clothes are washed, dry them under sunlight without keeping them in washing machine for a long time. Thus you will have whiter clothes.