Pre-treat any stains with detergent soaked cold water. Place the required amount of detergent (follow the dosage instructions on the pack) on the stains before you load the clothes in the washing machine. Soak for up to 15 minutes.
Wash in cold (30°C or below) water, whether using a washing machine or washing by hand.
Rinse your cotton fabrics on a cool cycle. To avoid shrinkage, wash with minimal agitation.
Give garments a gentle stretch when they come out of the wash to get them back into shape.
Dry clothes flat and out of the sun if possible.
If you have an item that you know is prone to more than 10% shrinkage, hand wash it in cold water.