What is expeller pressed oils? (good for you!)

"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. 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)."

See more @ Wikipedia

More info..

1. What is Expeller Pressed Oil and Why Does it Matter?
2. What is Expeller Pressed Oil? @ WiseGeek