This manuscript shows the recrystallization of micro Pentaerythritol tetranitrate (mcPETN) through solvent anti solvent technique by changing some important parameters viz., rotations per minute, temperature of crystallization, while keeping the concentration of PETN constant as in solvent acetone. The synthesized mcPETN is characterized for its crystal structure and morphology. The enhanced performance to its macro sized PETN is reported herewith the results.