Grape seed oil has numerous health benefits, from increasing vision to improving circulatory health. Consuming this oil orally or in pill form releases the benefits. You can extract the oil from grape seeds in many different ways, including using a mechanical press for commercial purposes or an old-fashioned mortar and pestle to extract smaller amounts.
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Mechanical Ram Press
Mechanical ram presses are one method of cold pressing for extraction. A ram press uses a piston inside a cage as a method to crush the grape seeds and force the oil out. Mechanical ram presses yield larger amounts of oil and are therefore used in the commercial production of grape seed oil.
Mortar and Pestle
This method of cold pressing extraction originates from India and is ideal for extracting small amounts of oil. A mortar and pestle heats the seeds and releases the oil using friction from grinding. Due to the physical nature of this process and the little amount of oil produced, mortar and pestles are not used commercially for grape seed oil extraction.
Many different types and sizes of oil expellers exist for both individual and commercial purposes. Oil expellers heat up the seeds using friction and electric heaters. Two types of expellers are the single cylinder expeller and cage-screw style expeller. Single cylinders emit a press cake in a cylinder form, while cage-screw style presses expel the press in large flakes.
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