For me it was finally time for me sometimes even prepare yogurt. That's me well done in the very first attempt with the help of this device. - The 7 glasses fit perfectly with a pint of milk. Simply enter a cup plain yogurt, mix well, spread on the jars and then eight hours of the device. After that let the filled jars to cool in the refrigerator. As simple as it may be, themselves prepare yogurt. They have one disadvantage, however: The device lacks a timer, so you have to turn off the unit even after the passage of time - as long as you do not work with a timer at the socket. Because of the lack timer there are only four stars from me for this device.