For the best-tasting brew, coffee drinkers know it's imperative to keep your machine clean. Keep your machine in top working condition with Capresso Cleaning Solution. By descaling every 2-3 months, or as often as necessary based on local water hardness, you will prevent limescale from building up, which can lengthen your brew time and leave your espresso, coffee or tea tasting bitter. 3 packets/box.