2-QT CAPACITY. (BPA FREE) At last, a yogurt maker that uses no energy to incubate your yogurt. This insulated container maintains uniform temperature, thus avoiding hot or cool spots. It is light, convenient and easy to clean (only one container to wash).  The Yogotherm may also be used to incubate other lactic products such as fromage blanc, keifer, buttermilk, and cheese starter cultures when making a mother culture. As a special thank you, when you purchase your new Yogotherm Yogurt Maker you will receive 1 yogurt culture free of charge (a $5.95 value). (BPA FREE)