Only ferromagnetic cookware works on induction, so test with a magnet.
- Cast iron and magnetic stainless steel are safe choices.
- Avoid aluminum, copper, glass, and ceramic unless they have a magnetic base.
- Look for the induction symbol or 'induction ready' label when buying new pots and pans.
What Makes Cookware Induction-Compatible?
Induction cooktops use electromagnetic coils to heat pans directly. The pan must contain ferromagnetic material, meaning it contains iron. This creates a magnetic field that generates heat. Cookware with a magnetic base or core will work. The bottom must be flat and fully cover the burner zone. Warped or small pans may not heat evenly or may not be detected.
How Can I Test If My Cookware Works?
The simplest test is a magnet. If a magnet sticks firmly to the bottom of the pan, it is induction-ready. Many manufacturers add an induction symbol, a coil icon, to the base. You can also check the product description or packaging. If the magnet slides or barely sticks, the pan may not work efficiently. Some pans have a magnetic disc embedded in the base, which also works.
Which Materials Work and Which Don't?
Cast iron and enameled cast iron work well. Stainless steel with a magnetic grade (like 18/10) works if the base is magnetic. Some stainless steel is not magnetic, so test it. Aluminum, copper, and glass do not work unless they have a magnetic layer. Nonstick pans often have a magnetic base, but check. Ceramic and stoneware are not compatible.
What Should I Consider When Buying Cookware for Induction?
Look for pans labeled 'induction ready' or 'induction compatible.' Check the base diameter; it should match your burner size. Heavier pans distribute heat better and are less likely to warp. Flat bottoms are essential for full contact. Some brands like All-Clad, Le Creuset, and T-fal offer induction-compatible lines. Read reviews to see how they perform on induction.
Are There Any Edge Cases or Exceptions?
Some older cookware may have a magnetic disc on the bottom, making it work. Induction-ready cookware is widely available, but not all stainless steel is magnetic. If your pan doesn't work, you can buy a converter disc, but it's inefficient. Also, some induction cooktops have a minimum pan size; smaller pans may not be detected. Always check your cooktop's manual for specific requirements.