The cold pressing process is most commonly used to make avocado, olive, pumpkin, flaxseed, sunflower, and peanut oils.
Production starts with the nuts, seeds, or fruits being used to make the product being ground into an even paste. This is slowly stirred, which encourages the oil to separate from the solid parts and clump together; once this happens, pressure is applied, forcing the oil out. This can be done with a machine or in the traditional way, with a stone.
Though the friction caused by the pressure does increase the temperature of the product, manufacturers must keep it within a certain degree range to be able to claim that the oil is cold pressed.
