Induction cookers will not work with non ferromagnetic cookware so why place a thick iron plate on top of the induction cooker and then your ceramic aluminum or stainless it?

While it is true that induction cookers will not work with non ferromagnetic cookware, placing a thick iron plate on top of the induction cooker and then using ceramic, aluminum, or stainless steel cookware is a viable solution. This is because the iron plate acts as an intermediary, allowing the induction cooker to generate heat, which is then transferred to the non-ferromagnetic cookware placed on top of the iron plate.

Here's how it works:

1. Induction cooktop generates a magnetic field: Induction cooktops use a copper coil to create a rapidly alternating magnetic field. This magnetic field penetrates the bottom of the cookware, causing the metal atoms in the cookware to vibrate and generate heat.

2. Iron plate as a heat conductor: When a thick iron plate is placed on the induction cooktop, the magnetic field generated by the cooktop easily penetrates the iron plate due to its high magnetic permeability. The iron plate, being ferromagnetic, gets heated up efficiently by the magnetic field.

3. Heat transfer to non-ferromagnetic cookware: The heated iron plate then transfers heat to the ceramic, aluminum, or stainless steel cookware placed on top of it through thermal conduction. These types of cookware, while not directly ferromagnetic, are good conductors of heat and can efficiently distribute the heat provided by the iron plate.

4. Safe and even cooking: Using an iron plate as an intermediary allows for safe and even cooking with non-ferromagnetic cookware on induction cooktops. The heat is evenly distributed throughout the iron plate and transferred to the cookware, preventing hotspots and ensuring uniform cooking.

It's important to note that the iron plate should be thick enough to absorb and distribute heat effectively. A plate that is too thin may not provide sufficient heat transfer and could become damaged or warp over time. Additionally, the size of the iron plate should be appropriate for the size of the induction cooker and the cookware you intend to use.