Electric Doi Maker - 1 Liter is really very easy, even you can control the ingredients and the flavors. To make yogurt just need milk and a yogurt starter. This electric doi maker uses a water soak to keep the yogurt container at a consistent temperature, with no hot or cool spots, throughout the entire fermenting time. It takes 8-15 hours to make doi. The inner container has a tight-fitting lid, so it can go right from the yogurt maker to the refrigerator. Now make yogurt at home easily and feel the taste of your kitchen.