and depends on whether or not electric resistance 16 and inductor 20 are operating simultaneously finally fig2 c shows that when neither of these elements 16 20 is operating the concavity can be covered by a wooden board 25 of complementary shape over a height h of 30 mm to validate the direct cooking function achieved according to the invention different cooking tests using exclusively electric resistance 16 have been performed on several types of foods placed directly in concavity 9 table 1 below indicates for each type of food the range of temperatures in u00b0 c used to achieve cooking as well as the necessary time in minutes when oil was used to cook the food under consideration this is indicated in parentheses table 1______________________________________ range of cooking ex tempera time necessary for cooking amples types of food ture u00b0 c minutes ______________________________________1 pork scallop oil 350 400 6 minutes for 150 g of meat 2 pork scallop 350 400 6 minutes for 150 g of meat 3 leg of lamb oil 350 400 8 minutes for 200 g of meat 4 chopped beef oil 350 400 8 minutes for 150 g of meat 5 chopped beef 350 400 6 minutes for 150 g of meat 6 chipolatas oil 210 250 20 minutes for.