The Durgol Swiss Espresso special descaler is designed to keep all brands and types of coffee machines running efficiently by removing limescale buildup. This food-safe solution works quickly without requiring additional reaction time, with each 125ml bottle capable of dissolving up to 10g of limescale. Formulated with sulfamic acid, the liquid provides essential corrosion protection and leaves no residue behind, ensuring your machine remains clean and functional. This pack contains two 125ml bottles, which is ideal for those who maintain their equipment every three months to ensure a consistent coffee taste.