The invention is a container for liquids, such as milk, juices and wines, which are subject to spoilage enhanced by contact with air. The container may be partially filled with liquid in a sub-chamber made anaerobic by a divider plate positioned on-the surface of the liquid and fitting sufficiently snugly within the container. The divider plate prevents contact between the beverage and air and thus reduces air-induced spoilage. Various embodiments provide springs and divider pullers to place the divider at the liquid surface, easy pouring and easy cleaning. A significant intended use is prolonging freshness of beverages in environments lacking refrigeration.
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