Solvent choice, temperature, pressure, solvent concentration, acid catalyst, acid concentration, residence time, and solid-liquid ratio are some of the important process parameters/conditions that affect feedstock recoveries, purities as well as material requirements. To define them, we turn to experimental studies in literature that have examined EFB sourced from Indonesia and Malaysia. For instance, recently examined the ethanol organosolv process for EFB biowaste sourced from Indonesia and determined optimal process parameters for cellulose and lignin recovery. However, degradation products were not quantified. These process parameters have been summarized below in Table . Feedstock recoveries, purities and other performance metrics specified by the study are summarized in Table . There are many other process parameters and unit operations reliant on processing steps defined in the following section.