The kitchen also has a lot of appliances that guzzle energy. Each extra degree in the refrigerator and freezer increases energy consumption by about 5% so make sure that your refrigerator and freezer are set at the right temperature; the refrigerator should be at +5 °C and the freezer at –18 °C. Defrost when necessary and always choose energy-efficient models at time of replacement. If you have a dishwasher, always wash with a full machine and, if possible, switch the drying function off and air dry your wash instead to save energy. Additionally, choose the power saving settings on machines and timers where this is possible.