This is a free flowing whitening powder which quickly dissolves in water, chlorine steriliser is released which kills all types of bacteria, mould, yeast, food and grease stains, etc. It is a stain removal powder for tough stains, which cleans and sterilises in one operation. Add or dissolve in water 100g to 200g of laundry whitener per 10Kg dry wash load. A 16% bleach gives excellent sanitising qualities. Not to be used with coloured garments.