Abstract: The invention relates to a combination of cover (2) and pot (5) can be used as a pressure cooker with a slight overpressure. A first annular sealing element (26) is provided at the bottom side of the cover (2) and comprises at least one locking means (10a, 10b) to match the size of the pot (5). The locking means (10a, 10b) comprises a contour portion (12), an actuating means (24) and an adjustment device with a second sealing element (16), wherein the second sealing element (16) is slidably movable in and against the center of the cover (2). A form-locking and force-locking connection is formed between the cover (2) and an upper portion of the outer surface of the pot (5) by the second sealing element (16) of the at least one locking means (10a, 10b).