An octagonal container for food, such as suitable for keeping or packaging tostadas, manufactured from a carton blank, is formed of eight sections or sides which includes at one end a flap with adhesion thereon that is joined to an opposite flap. The container also has edges located on top and bottom sides that are folded and joined towards the center of the container. The top part of the container is structured to form what appears to be a flower upon closure which provides a very attractive characteristic for the consumer. The container also has a practical, new, and easy closing system, so that when opening the container, it is only necessary to pull the opening flaps outward. To close the container, it is only necessary to press such flaps to the center and inwards and the container will be kept sealed. When closing the container, a “sinking” is formed in the top part of the container which acts as a cushion so that the product in the container is kept in good condition.