Very good value for money must however add a timer because there was just an on-off switch. Allow 10 hours for very good yogurt 1 1/2 liter of skim milk + 1yaourt whole milk + the equivalent of a cup of yoghurt milk 1/2 or skimmed, eventually add sugar or the Aspartame, all in a blender and then in pots without cover, 10 hours hot and you're joué.On can also use ceramic pots commercially available yogurt with "the farmer" put 5 + 2 pots pots glass.