Chinese herbal medicine has been popular for many centuries. Sunpentown Medicine Cooker brings you the benefits of herbal medicine, but takes the hassle out of the once time-consuming process. Simply place the ingredients, prepared by you herbalist, into the cooker and add the specified amount of water, plug in the unit and your medicine will automatically be reduced to one bowl, as prescribed. Automatically switches to Keep Warm. Warranty One-year parts and labor warranty. Customer must pay all repair and freight charges after warranty period. Warranty applies to residents of the United States only.