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