The kettle has an in-built stainless steel filter which filters out natural limescale. It\'s removable for cleaning too. Super fast boiling. Choose from seven temperature levels (120˚F to 212˚F) Auto shutoff and buzzer signal when set temperature is reached Keep Warm function maintains set water temperature for 20 minutes LED temperature display in degrees Fahrenheit and Celsius 360°swivel base Electronic temperature control heats water to your preferred temperature for beverages Choose from a variety of colors that match other SMEG appliances, allowing for a coordinated collection