Abstract: Provided is a liquid container having an outer surface and an interior container from which the level of liquid in the container is not visible; the liquid container having a detecting unit having a liquid amount detecting means and a liquid temperature detecting means which are inserted into the inner container and detect a liquid amount and a liquid temperature. A unit outer package located on the outer surface of the container displays the liquid amount and the liquid temperature detected by the detecting means. All detecting and display components are included in a single unit.

Abstract: There is provided a liquid container that has solved the problem of the impossibility to easily see a liquid surface within an inner bottle, namely a remaining liquid amount within a container, and the problem of the impossibility to easily check whether a liquid temperature inside the inner bottle being a vacuum double bottle is held at a desired temperature.