A radio frequency, RF, heating or defrosting system comprising: an RF signal source configured to produce an RF signal; a first structure comprising a shelf and a first electrode , wherein the first electrode is electrically coupled to the RF signal source; and a removable drawer , wherein the first structure and the removable drawer are configured to be physically engaged together in a non-permanent manner to create a cavity between the first structure and the removable drawer , the removable drawer comprising: a second electrode that at least partially vertically overlaps the first electrode when the removable drawer is physically engaged with the first structure; a first conductive feature that is permanently coupled to the removable drawer and permanently electrically coupled to the second electrode ; a removable platform ; a side rail to which the first conductive feature is connected; dielectric material on which or in which the second electrode is formed; and one or more conductive traces formed in or on the dielectric material that electrically connect the second electrode to the first conductive feature, the system further comprising a second conductive feature that is configured to physically and electrically connect to the first conductive feature when the removable drawer is fully physically engaged with the first structure . an RF signal source configured to produce an RF signal; a first structure comprising a shelf and a first electrode , wherein the first electrode is electrically coupled to the RF signal source; and a removable drawer , wherein the first structure and the removable drawer are configured to be physically engaged together in a non-permanent manner to create a cavity between the first structure and the removable drawer , the removable drawer comprising: a second electrode that at least partially vertically overlaps the first electrode when the removable drawer is physically engaged with the first structure; a first conductive feature that is permanently coupled to the removable drawer and permanently electrically coupled to the second electrode ; a removable platform ; a side rail to which the first conductive feature is connected; dielectric material on which or in which the second electrode is formed; and one or more conductive traces formed in or on the dielectric material that electrically connect the second electrode to the first conductive feature, a second electrode that at least partially vertically overlaps the first electrode when the removable drawer is physically engaged with the first structure; a first conductive feature that is permanently coupled to the removable drawer and permanently electrically coupled to the second electrode ; a removable platform ; a side rail to which the first conductive feature is connected; dielectric material on which or in which the second electrode is formed; and one or more conductive traces formed in or on the dielectric material that electrically connect the second electrode to the first conductive feature, the system further comprising a second conductive feature that is configured to physically and electrically connect to the first conductive feature when the removable drawer is fully physically engaged with the first structure . <EOS>