Expeller pressing (also called oil pressing) is a mechanical method for extracting oil from raw materials. The raw materials are squeezed under high pressure in a single step. When used for the extraction of food oils, typical raw materials are nuts, seeds and algae, which are supplied to the press in a continuous feed. Expeller presses can recover 75% of the oil from algae. As the raw material is pressed, friction causes it to heat up; in the case of harder nuts (which require higher pressures) the material can exceed temperatures of 120 °F (49 °C).
Read more about Expeller Pressing: Overview, Efficiency, Expanded Applications
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“Ambition is an uncomfortable companion many times. He creates a discontent with present surroundings and achievements; he is never satisfied but always pressing forward to better things in the future. Restless, energetic, purposeful, it is ambition that makes of the creature a real man.”
—Lyndon Baines Johnson (1908–1973)