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2027 Best of Innovation Award
2027 Honoree Award

Graphene Induction Hybrid Cooker

Graphene Square
  • 2027 Best of Innovation in Food Tech
  • 2027 Honoree in Home Appliances
The graphene induction hybrid cooker is the world’s first cookware that can simultaneously use induction and Joule heating technologies in a single cooking zone. A conventional induction range requires a special cooking appliance that induces the high-frequency modulation of the magnetic field into an internal current that generates heat through electrical resistance. Therefore, non-magnetic metals or ceramic/glass cookware cannot be used in an induction cooker. On the other hand, heating coils are usually large in volume and locally too hot (above 900°C), so they cannot be combined vertically with induction heating. Here, we use a transparent graphene film as a Joule heating component that doesn't interfere with induction in terms of thickness and transparency. The 1 nm thick 3-layer graphene can be heated up to 500°C and its unique mid-infrared radiation resonates with the typical molecular vibrational energy of food components (2–5 μm), resulting in 30% improved energy efficiency.

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