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A mechanical device utilizes pressure to extract oils from seeds, nuts, or fruits without the use of heat. This process typically involves crushing the raw material with a screw or hydraulic press to separate the oil from the pulp. For instance, extra virgin olive oil is often produced using this method.

This method offers several advantages, including preserving the natural flavor, aroma, nutrients, and antioxidants within the extracted oils. Because heat is avoided, the oils retain their quality and integrity, resulting in a higher-quality product. Historically, these methods have been employed for centuries in various cultures, evolving from simple stone mills to the sophisticated equipment available today.

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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.

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