Premium Yoshino Hinoki essential oil is different from the usual steam-distilled hinoki essential oil due to the differences of the extraction method. The premium essential oil is extracted by using a decompression and thermal circulation method. The premium oil extracts oil Hinoki lumber, with a preference to the core material, extracted it from the red part in the center when available. For the decompression thermal circulation extraction method, the hinoki xylem is put into the machine, then the pressure inside of the vessel is decompressed, and heated water is circulated through material for extraction. The essential oil extracted by craftsmen who have spent years honing their craft and coaxing out the unique scent of the Japanese hinoki.