Brown stains left behind on laundry after washing are usually caused by pollen or plant sap.
Stains on delicate summer clothing: pretreat the stains with a detergent enhancer before running the wash programme. Leave the detergent enhancer to work for 10 minutes. Then wash in accordance with the care label. Please use a delicates detergent and detergent enhancer as well.
Stains on white or colourfast clothing: please use some additional stain remover powder during the wash processes and select the highest wash temperature permitted by the care label.