Which clothes must be washed by hand? How to wash clothes by hand better?

How to clean inside of washing machine?

Delicate clothes with the possibility of shrinking must be hand washed.Generally you can hand wash all clothes however you should be careful; separate the clothes according to their color and stains before washing them.As color: Whites, colored, dark colored etc.As type: White cottons, white linens, colored cotton, colored linens etc.As stain: Less stained, More stained etc.You can wash your clothes by adding the amount of detergent stated on ABC Matik package according to your clothes’ stains and degrees of water hardness. For persistent stains, you can keep your clothes in detergent water for one night before washing them.