Abstract: Sealable liquid-tight containers and methods for economically manufacturing containers for storing and dispensing substances and any other purposes for which conventional sealable liquid-tight containers are utilized. The containers are readily and economically formed from inorganically filled mixtures comprising a water-dispersible organic polymer binder, aggregate fillers, fibers, and water. Alternatively, such containers are formed from high starch-containing compositions which optionally include inorganic fillers up to about 90%. Such compositions can be directly molded, formed into wet sheets and then molded, formed into dry sheets and then reformed, or extruded into the container components. The containers or components thereof may optionally be coated, lined, laminated, and/or receive printing.