My induction hob makes a noise when cooking. Is this normal?
Noises can certainly occur when cooking on induction hobs. This is because the metal components in the base of the pot consist of multiple layers and vibrate. This usually occurs when using lower quality pots with glued bases. It differs from one pan to another and often reduces after cooking for a few minutes.
Some noises are specific to the technology, while others may be caused by the pans. Here is a summary:
Induction-related noises
Induction technology is based on the properties of certain metals when they are exposed to electromagnetic influences. As a result so-called eddy currents occur, which make the molecules vibrate. These vibrations are converted into heat. As a result, quiet sounds are made depending on the material that is used. The sound may depend on the type of base on your pan.
Humming
Humming sound like a transformer. This happens when you are cooking on a higher heat setting, and it is caused by the amount of energy being conveyed from the hob to the utensils. The sound will disappear or be quieter if you adjust the hob to a lower temperature.
Crackling sound
This sound occurs if the utensils are made from multiple layers of metal. The sound is caused by vibrations in the surfaces of the different layers of material that are in contact. This sound is caused by the cooking utensils and depends on their quality and the type of food being prepared.
Whistling sound
These sounds usually occur in cooking utensils made from multiple layers of material, and when two adjacent hobs are being used simultaneously on the maximum setting. The whistling sound will disappear or become quieter if you adjust the hob to a lower temperature.
Ventilator noise
To ensure that the electronics work correctly, the temperature must not rise too high. The hob is therefore fitted with a ventilator, which works on different settings depending on the temperature. After the hob has been switched off, the ventilator continues to operate if the temperature is still too high.