An electrically or manually operated device extracts oil from seeds, nuts, or other plant material through a hydraulic or screw-based pressing mechanism, without external heat application. This mechanical process yields high-quality oil with minimal processing, preserving delicate flavors, aromas, and nutrients often lost through traditional high-heat methods. For instance, extra virgin olive oil is typically produced using this method.
This low-temperature extraction offers numerous advantages, including higher nutrient retention, richer flavors, and a longer shelf life for the extracted oil. Avoiding heat preserves volatile aromatic compounds and antioxidants, resulting in a superior product often preferred by culinary enthusiasts and health-conscious individuals. Historically, similar methods, albeit simpler and less efficient, have been employed for centuries to obtain oils for various purposes, highlighting the enduring value of this approach.
