Fibre size does not appear to influence the ease of enzymatic hydrolysis of organosolv-pretreated softwoods

► The effect of fibre size on the enzymatic hydrolysis of cellulose was evaluated. ► Fibre size on its own does not influence enzymatic hydrolysis of cellulose. ► Fines (fibres <0.2 mm) content does not influence enzymatic hydrolysis of cellulose. ► Cellulose DP does not affect it's enzymatic hydrolysis.