Abstract: A reinforced paperboard tray includes a coated paperboard in the form of a bottom wall, a side wall extending upwardly around the bottom wall, and a curved flange extending outwardly around the side wall. The coated paperboard includes a single-ply paperboard substrate having a first major side and a second major side, the first major side corresponding to an upper side of the bottom wall, and a barrier coating on the first major side of the single-ply paperboard substrate. A paperboard reinforcement is attached to the curved flange.

Abstract: A fluid reservoir for retaining a particular fluid against an environmental force is disclosed. The fluid reservoir includes a three dimensional porous body that has a plurality of reservoir capillaries formed therein and has a transport volume and effective capillarity in the force direction for the particular fluid when the porous body is oriented in a predetermined orientation. The fluid reservoir also includes at least one lateral indentation in a surface of the porous body. Each of the at least one lateral indentation defines opposing reservoir surfaces each having a lateral surface component orthogonal to the force direction. The at least one lateral indentation is configured so that at least a majority of the reservoir capillaries have a force-aligned length component that is less than the effective capillarity for the particular fluid.