a method and system for the production of fibers for use in biocomposites is provided that includes the ability to use both retted and unretted straw , that keeps the molecular structure of the fibers intact by subjecting the fibers to minimal stress , that maximizes the fiber &# 39 ; s aspect ratio , that maximizes the strength of the fibers , and that minimizes time and energy inputs , along with maintaining the fibers in good condition for bonding to the polymer used with the fibers to form the biocomposite material . this consequently increases the functionality of the biocomposites produced , increasing their marketability . additionally , as the disclosed method does not damage the fibers , oilseed flax straw , as well as all types of fibrous materials etc ., can be processed in bio composite materials .