Regular use extends the life of the machine, maintains energy efficiency, and guarantees the best taste of coffee and cream. The packaging is made of recycled plastic. Up to 3x more effective and faster than traditional descalers. Applicable for all coffee machines. All natural. Laboratory tests have shown that De’Longhi eco calk is up to three times more effective and faster in dissolving limescale deposits compared to traditional descaling. It is therefore ideal to restore the optimal hygienic conditions of your coffee machine.