A food mold includes a food mold body made of a mold body material, having one or more cells with flexible wall, the cells being open on a common access face itself having a peripheral rim extending radially outward from an inner edge, marking the boundary with the cell or cells and to a free outer edge, the peripheral rim being provided with a peripheral stiffening element in the form of a continuous annular reinforcement with, if necessary, one or more intermediate stiffening elements. The peripheral stiffening element is entirely embedded in the mold body material. Around the peripheral stiffening element, the mold body material has no through passages free or blocked between the peripheral stiffening element and the outer surface of the material.