The machines are built to clean themselves regularly. They come with a 3 step cleaning mechanism that keeps them in optimum condition. Your coffee machine will prompt you to rinse your coffee system, but you can initiate it any time you want. Simply select the rinsing mechanism on the machine, and place a cup under it to catch the water.  If you use Jura’s recommended originated CLEARYL filter for your tank, you won’t need to descale it. Otherwise,  look through your manual for descaling instructions.  Finally, you need to clean the entire machine after 180 brews. The machine will prompt you once you cross this threshold. People use baking soda and vinegar to clean their machines; however, you should use Jura’s cleaning tablets for the best cleaning. Simply pop one of those tablets in, and follow the instructions on your manual.