Dishwashers (Suitable for all makes of dishwasher). Empty dishwasher and pour contents of 1 sachet onto the bottom of the machine. Select run and a normal program without pre-wash. Washing Machines (Suitable for front-loading automatic machines only). Empty washing machine and add the contents of 1 sachet to the drum. Select and run a 60°C cycle without a pre-wash. To keep appliances good-as-new and running efficiently, descale every 3 months in hard water areas and every 6 months in soft water areas. IRRITANT. OUST DISHWASHER & WASHING MACHINE DESCALER. Irritating to the eyes and skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Easy to use Good product for use