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.