a system or apparatus and associated method is provided to remove pinholes from bio composite materials in order to increase the strength and functionality of the composites . the apparatus and method uses an inert gas , such as nitrogen , that is introduced into the processing chamber where the fiber and the polymer are combined to form the biocomposite material . the inert gas is introduced through an inlet into the chamber and creates a pressure differential between the interior and exterior of the product mixture to force the air and moisture out of the mixture and through an outlet or vent on the chamber , along with the inert gas and any other gases , thereby preventing or at least significantly limiting the formation of pinholes in the biocomposite product .