Induction Vs. Infrared Cooktops

Ongoing geopolitical tensions in West Asia have once again underscored India’s vulnerability as an energy import-dependent nation, sparking renewed focus on fuel security and alternatives to LPG-based cooking.

In response, the government recently convened an inter-ministerial meeting to explore ways to boost domestic manufacturing of electric cooking appliances, particularly induction cooktops and compatible utensils. This comes as many Indian households begin transitioning toward electric cooking solutions.

Rising Popularity of Electric Cooktops

Across urban kitchens, induction and infrared cooktops are emerging as practical substitutes for traditional gas stoves:

• Induction Cooktops:
  These devices use the principle of Electromagnetic Induction to directly heat cookware. A rapidly changing magnetic field induces electric currents in ferromagnetic vessels, producing heat due to electrical resistance.
• Efficiency Advantage: Induction cooktops are highly efficient, converting 85–95% of electrical energy into heat, as heating occurs directly in the vessel.
• Limitation: They require ferromagnetic cookware (e.g., cast iron, magnetic stainless steel), which tends to be more expensive—posing a barrier for widespread adoption.

Infrared Cooktops: A Flexible Alternative

Infrared cooktops are gaining traction despite slightly higher upfront costs:

• These devices rely on Infrared Radiation, where electricity heats a coil beneath a ceramic surface.
• The heated coil emits radiation that transfers heat to any type of vessel—steel, aluminium, glass, or ceramic—without requiring magnetic compatibility.
• Working Mechanism:
  The radiant heat causes molecules in the cookware to vibrate, generating thermal energy to cook food.
• Efficiency Trade-off:
  Infrared cooktops operate at 70–80% efficiency, lower than induction due to multi-stage heat transfer (coil → glass → vessel), resulting in some energy loss.

Source: IE