The HG Descaler is suitable for coffee machines, electric kettles, and washing machines. It's an effective descaling fluid that helps remove scale from hot-water equipment, such as coffee-makers, electric kettles, and washing machines. Scale and limescale deposits can make heater elements less efficient and wear them out faster. This descaler does not improve the flavor of coffee made with a coffee-maker. It comes in a 500ml size and is designed for hot-water equipment.