A coil or spiral, indicating cookware works on induction.
Also known as: Induction symbol, Induction compatible symbol, Coil symbol cookware, Induction ready symbol
A coil of wire marks a pan as suitable for an induction hob. Unlike the other marks here the underlying property is testable at home: induction needs a ferrous base, so a magnet that sticks to the bottom of the pan settles it.
Is not a standardised symbol. No body defines it, its drawing varies between manufacturers, and its presence is the manufacturer's own assurance rather than a certification — so the absence of the mark does not reliably mean the object is unsuitable, and its presence is not a guarantee.
Stated first rather than as a footnote, because it is the most useful thing to know about the mark. Check the manufacturer's own instructions where it matters.
Contexts: Packaging
Indicates that cookware will work on an induction hob, drawn as a horizontal coil or a series of loops representing the induction element.
Contexts: Packaging
Reflects a physical property rather than a manufacturer's judgement: induction heats by inducing a current in a ferrous base, so a pan either works or it does not, and a magnet sticking to the base is a reliable test.
This makes it the one mark in this batch a reader can verify independently, even though the symbol itself is not standardised.
Contexts: Packaging
Is absent from most aluminium, copper and glass cookware, which will not work on induction regardless of quality.
Contexts: Packaging
A horizontal series of tight loops or a flattened coil, like a spring viewed from the side.
Both draw a coil, and for the same reason — an induction hob works by electromagnetic induction, which is what an inductor does.