Abstract: A packaging tray provided with a bottom, side walls, and an outwardly directed flange surrounding the periphery of the side walls of the tray, consists of outer and inner layers of a moldable and stretchable synthetic plastic material, and intermediate layers of liquid-absorbing material with no or but insignificant stretchability. At the molding of the tray, the side walls thereof are formed by stretching of the plastic material and in a softening operation, an adhesive bond is realized between the outer and inner layers in the stretched tray side walls which thus present an at least partially ruptured intermediate layer.