How to Use Washing Powder - Persil
To get the best out of Persil washing powder, we recommend: For pre-washing, add an extra 100ml of laundry powder. For handwashing, mix 100ml per 10 litres (one bowlful) of water. When handwashing, ensure that the powder has dissolved completely. For heavily soiled washes, use more washing powder up to a maximum of 400ml.