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.
