A cooking apparatus for controlling the opening of a cover over a barbecue grill includes a motor for opening and closing the cover over the barbecue grill, with the motor connected to the cover by a coupling rod. According to the invention, an unauthorised removal of storage material may be prevented, whereby an access control system is provided, by means of which access to the storage material support in the access region is permitted or blocked depending on an access authorisation of the user. In storage, the contact adhesive is covered by a peelable backing.