The term describes a mechanical method for extracting oil from seeds, nuts, or other oil-bearing materials. This process relies solely on pressure to squeeze the oil out, contrasting with methods that use chemical solvents. For example, sunflower seeds can be fed into a machine that applies intense pressure, resulting in the separation of oil from the seed solids.
This method is often favored for its perceived health benefits and environmental considerations. Because it avoids chemical solvents, the resulting oil is considered purer and retains more of its natural flavor, aroma, and nutrients. Historically, this pressing technique has been used for centuries, offering a more traditional and sustainable approach to oil production.
