Induction sealing creates a hermetic seal by passing a capped bottle under the induction sealer in a non-contact process. The system’s sealing head produces an electromagnetic field that heats up the foil liner inside the cap. The hot foil in turn melts the polymer coating on the inner-seal. The heat, coupled with the pressure of the cap, causes the inner-seal to bond to the lip of the container resulting in a hermetic seal.