[. . . ] NESPRESSO, an exclusive system creating the perfect espresso, time after time. [. . . ] Take off the grid, place them side by side and clip the drip tray to the cup support. To exit the descaling mode, press both buttons simultaneously for one second. CAUTION Nespresso descaling kit available from the Nespresso not use other products (such as vinegar) that would affect the taste of the coffee. The following table will indicate the descaling frequency required for the optimum performance of your machine, based on Nespresso Club. [. . . ] If you believe your product is defective, contact Nespresso for instructions on where to send or bring it for repair. [. . . ]