Sonya Soy Milk Maker Machine Sya18a Stainless Steel Motor Head and Heatproof Double Layers' Container 5 in 1 -2013 New Model Double-layer Structure- full stainless steel inner design & outside plastic covering Revolutionary bottom-heater technology  less burning and sticking Heatproof design, container with double layers- great updated from the last model ETL and CETL certified--Offers you uncompromised safety and peace of mind. 5 featured functions: Dry beans, Wet Beans, Nutrient paste, Mung/red bean, blending