How do you make peanut oil ?

Peanut oil

Peanut oil is obtained by one of three methods, including hydraulic, expeller and solvent extraction methods. The hydraulic method of extraction consists of pressing the shelled peanuts under 14,000 psi, while adding steam and heat.

Expeller pressing is the most popular method of peanut oil extraction. Expeller pressing resembles a modern day meat grinder. Peanuts are fed into a grinder, and pressure is added as the screw turns. This forces the mass out through a perforated screen. The screen separates the oil from the proteinaceous material.

The solvent method is the most expensive of the three methods. It involves using hexane to extract oil from a peanut meal. This method is frequently combined with the expeller methods.