Final answer:
A ceramic plate used as a stove top in an electric stove does not have a food contact surface and is ideal due to its moderate thermal conductivity, which allows efficient heating while maintaining safe-to-touch surrounding areas.
Step-by-step explanation:
The item that does not have a food contact surface is a ceramic plate when it's being used as a part of an electric stove system with heating elements hidden beneath. In this setup, the ceramic plate serves as the stove top which does not come in direct contact with food but rather provides a surface for pots and pans to be heated on. The unique properties of ceramic, having a conductivity less than that of a metal but greater than that of a good insulator make it an ideal choice for this purpose.