These mechanical devices extract oil from seeds, nuts, or fruits through a low-heat process. This process involves crushing the material using a hydraulic or screw press to squeeze out the oil without applying external heat. An example includes extracting high-quality oils from materials like flax seeds or olives.
The low-temperature extraction method preserves delicate flavors, aromas, and nutrients often lost in high-heat processes. This results in a higher quality product with a longer shelf life and greater nutritional value. Historically, similar methods, albeit simpler, have been employed for centuries to obtain oils for culinary and cosmetic purposes. The modern versions offer enhanced efficiency and scalability, meeting increasing demand for naturally produced oils.