Coffee has natural oils. This oil can build up in your machine and adversely affect the taste of your coffee. At least once a day, wipe the spray-head area and clean the filter basket with water. You should also have a technician come in and thoroughly clean and de-lime your machine every 6 months to a year depending on how much you use your machine. For home models, follow a similar cleaning routine and occasionally run a strong solution of white vinegar water through the machine to clean out built up oils and mineral residue. After such cleaning, be sure to flush your machine thoroughly with couple of rounds of water.

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