For extraction of grinded sunflower seeds with subcritical water a 60 mL cylindrical stainless steel high-pressure batch extractor was used. Temperature regulation was performed with a heating cable and stirring of the extraction media was performed by using a magnetic stirrer. The filled extractor was purged three times with inert nitrogen gas to remove present atmospheric oxygen, which could cause oxidation of oil during extraction. The applied extraction pressure for all extractions was equal to 30 bar and was held constant throughout the extraction.