Methods, systems, and devices are disclosed for partitioning food containers, such as cereal bowls. Some embodiments may include a system with a food container, which may be a cereal bowl. The system may also include a flexible membrane having a top surface and a bottom surface. The membrane may partition the food container into a lower portion and an upper portion. The lower portion may be for holding liquid content. The upper bowl portion may be adapted for holding edible solid content. The membrane may have multiple passageways extending from the membrane bottom surface through the membrane top surface. The multiple passageways may be normally closed and then expand to an open configuration allowing fluid transmission from below the membrane to above the membrane when the membrane is flexed in a first direction normal to a resting plane parallel to the top surface and the bottom surface.