Abstract: A double-walled container is used to thermally isolate a stored substance from the external environment. The double walled container has an interior container, an exterior sidewall a flat base and a spacer ring. The interior container serves as a receptacle into which the stored substance is placed. The exterior sidewall is mounted onto the flat base so that the double walled container can be rested on a surface. The spacer ring is connected in between a rim of the exterior wall and a rim of the interior container. Thus connected, the spacer ring maintains the interior container in a position offset from the exterior sidewall. This enables an insulating compartment to be positioned in between the two components. Thereby, thermally isolating the interior container from the exterior sidewall.